Alternatives to Agenta
Compare Agenta alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Agenta in 2026. Compare features, ratings, user reviews, pricing, and more from Agenta competitors and alternatives in order to make an informed decision for your business.
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1
Google AI Studio
Google
Google AI Studio is a unified development platform that helps teams explore, build, and deploy applications using Google’s most advanced AI models, including Gemini 3. It brings text, image, audio, and video models together in one interactive playground. With vibe coding, developers can use natural language to quickly turn ideas into working AI applications. The platform reduces friction by generating functional apps that are ready for deployment with minimal setup. Built-in integrations like Google Search enhance real-world use cases. Google AI Studio also centralizes API key management, usage monitoring, and billing. It offers a fast, intuitive path from prompt to production powered by vibe coding workflows. -
2
HoneyHive
HoneyHive
AI engineering doesn't have to be a black box. Get full visibility with tools for tracing, evaluation, prompt management, and more. HoneyHive is an AI observability and evaluation platform designed to assist teams in building reliable generative AI applications. It offers tools for evaluating, testing, and monitoring AI models, enabling engineers, product managers, and domain experts to collaborate effectively. Measure quality over large test suites to identify improvements and regressions with each iteration. Track usage, feedback, and quality at scale, facilitating the identification of issues and driving continuous improvements. HoneyHive supports integration with various model providers and frameworks, offering flexibility and scalability to meet diverse organizational needs. It is suitable for teams aiming to ensure the quality and performance of their AI agents, providing a unified platform for evaluation, monitoring, and prompt management. -
3
Parea
Parea
The prompt engineering platform to experiment with different prompt versions, evaluate and compare prompts across a suite of tests, optimize prompts with one-click, share, and more. Optimize your AI development workflow. Key features to help you get and identify the best prompts for your production use cases. Side-by-side comparison of prompts across test cases with evaluation. CSV import test cases, and define custom evaluation metrics. Improve LLM results with automatic prompt and template optimization. View and manage all prompt versions and create OpenAI functions. Access all of your prompts programmatically, including observability and analytics. Determine the costs, latency, and efficacy of each prompt. Start enhancing your prompt engineering workflow with Parea today. Parea makes it easy for developers to improve the performance of their LLM apps through rigorous testing and version control. -
4
Weavel
Weavel
Meet Ape, the first AI prompt engineer. Equipped with tracing, dataset curation, batch testing, and evals. Ape achieves an impressive 93% on the GSM8K benchmark, surpassing both DSPy (86%) and base LLMs (70%). Continuously optimize prompts using real-world data. Prevent performance regression with CI/CD integration. Human-in-the-loop with scoring and feedback. Ape works with the Weavel SDK to automatically log and add LLM generations to your dataset as you use your application. This enables seamless integration and continuous improvement specific to your use case. Ape auto-generates evaluation code and uses LLMs as impartial judges for complex tasks, streamlining your assessment process and ensuring accurate, nuanced performance metrics. Ape is reliable, as it works with your guidance and feedback. Feed in scores and tips to help Ape improve. Equipped with logging, testing, and evaluation for LLM applications.Starting Price: Free -
5
Pezzo
Pezzo
Pezzo is the open-source LLMOps platform built for developers and teams. In just two lines of code, you can seamlessly troubleshoot and monitor your AI operations, collaborate and manage your prompts in one place, and instantly deploy changes to any environment.Starting Price: $0 -
6
PromptHub
PromptHub
Test, collaborate, version, and deploy prompts, from a single place, with PromptHub. Put an end to continuous copy and pasting and utilize variables to simplify prompt creation. Say goodbye to spreadsheets, and easily compare outputs side-by-side when tweaking prompts. Bring your datasets and test prompts at scale with batch testing. Make sure your prompts are consistent by testing with different models, variables, and parameters. Stream two conversations and test different models, system messages, or chat templates. Commit prompts, create branches, and collaborate seamlessly. We detect prompt changes, so you can focus on outputs. Review changes as a team, approve new versions, and keep everyone on the same page. Easily monitor requests, costs, and latencies. PromptHub makes it easy to test, version, and collaborate on prompts with your team. Our GitHub-style versioning and collaboration makes it easy to iterate your prompts with your team, and store them in one place. -
7
Literal AI
Literal AI
Literal AI is a collaborative platform designed to assist engineering and product teams in developing production-grade Large Language Model (LLM) applications. It offers a suite of tools for observability, evaluation, and analytics, enabling efficient tracking, optimization, and integration of prompt versions. Key features include multimodal logging, encompassing vision, audio, and video, prompt management with versioning and AB testing capabilities, and a prompt playground for testing multiple LLM providers and configurations. Literal AI integrates seamlessly with various LLM providers and AI frameworks, such as OpenAI, LangChain, and LlamaIndex, and provides SDKs in Python and TypeScript for easy instrumentation of code. The platform also supports the creation of experiments against datasets, facilitating continuous improvement and preventing regressions in LLM applications. -
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Maxim
Maxim
Maxim is an agent simulation, evaluation, and observability platform that empowers modern AI teams to deploy agents with quality, reliability, and speed. Maxim's end-to-end evaluation and data management stack covers every stage of the AI lifecycle, from prompt engineering to pre & post release testing and observability, data-set creation & management, and fine-tuning. Use Maxim to simulate and test your multi-turn workflows on a wide variety of scenarios and across different user personas before taking your application to production. Features: Agent Simulation Agent Evaluation Prompt Playground Logging/Tracing Workflows Custom Evaluators- AI, Programmatic and Statistical Dataset Curation Human-in-the-loop Use Case: Simulate and test AI agents Evals for agentic workflows: pre and post-release Tracing and debugging multi-agent workflows Real-time alerts on performance and quality Creating robust datasets for evals and fine-tuning Human-in-the-loop workflowsStarting Price: $29/seat/month -
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PromptPoint
PromptPoint
Turbocharge your team’s prompt engineering by ensuring high-quality LLM outputs with automatic testing and output evaluation. Make designing and organizing your prompts seamless, with the ability to template, save, and organize your prompt configurations. Run automated tests and get comprehensive results in seconds, helping you save time and elevate your efficiency. Structure your prompt configurations with precision, then instantly deploy them for use in your very own software applications. Design, test, and deploy prompts at the speed of thought. Unlock the power of your whole team, helping you bridge the gap between technical execution and real-world relevance. PromptPoint's natively no-code platform allows anyone and everyone in your team to write and test prompt configurations. Maintain flexibility in a many-model world by seamlessly connecting with hundreds of large language models.Starting Price: $20 per user per month -
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Prompteams
Prompteams
Develop and version control your prompts. Auto-generated API to retrieve prompts. Automatically run end-to-end LLM testing before making updates to your prompts on production. Let your industry specialists and engineers collaborate on the same platform. Let your industry specialists and prompt engineers test and iterate on the same platform without any programming knowledge. With our testing suite, you can create and run unlimited test cases to ensure the quality of your your your your your prompt. Check for hallucinations, issues, edge cases, and more. Our suite is the most complex of prompts. Use Git-like features to manage your prompts. Create a repository for each project, and create multiple branches to iterate on your prompts. Commit your changes and test them in a separate environment. Easily revert back to a previous version. With our real-time APIs, one single click, and your prompt is updated and live.Starting Price: Free -
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PromptGround
PromptGround
Simplify prompt edits, version control, and SDK integration in one place. No more scattered tools or waiting on deployments for changes. Explore features crafted to streamline your workflow and elevate prompt engineering. Manage your prompts and projects in a structured way, with tools designed to keep everything organized and accessible. Dynamically adapt your prompts to fit the context of your application, enhancing user experience with tailored interactions. Seamlessly incorporate prompt management into your current development environment with our user-friendly SDK, designed for minimal disruption and maximum efficiency. Leverage detailed analytics to understand prompt performance, user engagement, and areas for improvement, informed by concrete data. Invite team members to collaborate in a shared environment, where everyone can contribute, review, and refine prompts together. Control access and permissions within your team, ensuring members can work effectively.Starting Price: $4.99 per month -
12
Adaline
Adaline
Iterate quickly and ship confidently. Confidently ship by evaluating your prompts with a suite of evals like context recall, llm-rubric (LLM as a judge), latency, and more. Let us handle intelligent caching and complex implementations to save you time and money. Quickly iterate on your prompts in a collaborative playground that supports all the major providers, variables, automatic versioning, and more. Easily build datasets from real data using Logs, upload your own as a CSV, or collaboratively build and edit within your Adaline workspace. Track usage, latency, and other metrics to monitor the health of your LLMs and the performance of your prompts using our APIs. Continuously evaluate your completions in production, see how your users are using your prompts, and create datasets by sending logs using our APIs. The single platform to iterate, evaluate, and monitor LLMs. Easily rollbacks if your performance regresses in production, and see how your team iterated the prompt. -
13
EvalsOne
EvalsOne
An intuitive yet comprehensive evaluation platform to iteratively optimize your AI-driven products. Streamline LLMOps workflow, build confidence, and gain a competitive edge. EvalsOne is your all-in-one toolbox for optimizing your application evaluation process. Imagine a Swiss Army knife for AI, equipped to tackle any evaluation scenario you throw its way. Suitable for crafting LLM prompts, fine-tuning RAG processes, and evaluating AI agents. Choose from rule-based or LLM-based approaches to automate the evaluation process. Integrate human evaluation seamlessly, leveraging the power of expert judgment. Applicable to all LLMOps stages from development to production environments. EvalsOne provides an intuitive process and interface, that empowers teams across the AI lifecycle, from developers to researchers and domain experts. Easily create evaluation runs and organize them in levels. Quickly iterate and perform in-depth analysis through forked runs. -
14
Langfuse
Langfuse
Langfuse is an open source LLM engineering platform to help teams collaboratively debug, analyze and iterate on their LLM Applications. Observability: Instrument your app and start ingesting traces to Langfuse Langfuse UI: Inspect and debug complex logs and user sessions Prompts: Manage, version and deploy prompts from within Langfuse Analytics: Track metrics (LLM cost, latency, quality) and gain insights from dashboards & data exports Evals: Collect and calculate scores for your LLM completions Experiments: Track and test app behavior before deploying a new version Why Langfuse? - Open source - Model and framework agnostic - Built for production - Incrementally adoptable - start with a single LLM call or integration, then expand to full tracing of complex chains/agents - Use GET API to build downstream use cases and export dataStarting Price: $29/month -
15
Opik
Comet
Confidently evaluate, test, and ship LLM applications with a suite of observability tools to calibrate language model outputs across your dev and production lifecycle. Log traces and spans, define and compute evaluation metrics, score LLM outputs, compare performance across app versions, and more. Record, sort, search, and understand each step your LLM app takes to generate a response. Manually annotate, view, and compare LLM responses in a user-friendly table. Log traces during development and in production. Run experiments with different prompts and evaluate against a test set. Choose and run pre-configured evaluation metrics or define your own with our convenient SDK library. Consult built-in LLM judges for complex issues like hallucination detection, factuality, and moderation. Establish reliable performance baselines with Opik's LLM unit tests, built on PyTest. Build comprehensive test suites to evaluate your entire LLM pipeline on every deployment.Starting Price: $39 per month -
16
Comet LLM
Comet LLM
CometLLM is a tool to log and visualize your LLM prompts and chains. Use CometLLM to identify effective prompt strategies, streamline your troubleshooting, and ensure reproducible workflows. Log your prompts and responses, including prompt template, variables, timestamps and duration, and any metadata that you need. Visualize your prompts and responses in the UI. Log your chain execution down to the level of granularity that you need. Visualize your chain execution in the UI. Automatically tracks your prompts when using the OpenAI chat models. Track and analyze user feedback. Diff your prompts and chain execution in the UI. Comet LLM Projects have been designed to support you in performing smart analysis of your logged prompt engineering workflows. Each column header corresponds to a metadata attribute logged in the LLM project, so the exact list of the displayed default headers can vary across projects.Starting Price: Free -
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Narrow AI
Narrow AI
Introducing Narrow AI: Take the Engineer out of Prompt Engineering Narrow AI autonomously writes, monitors, and optimizes prompts for any model - so you can ship AI features 10x faster at a fraction of the cost. Maximize quality while minimizing costs - Reduce AI spend by 95% with cheaper models - Improve accuracy through Automated Prompt Optimization - Achieve faster responses with lower latency models Test new models in minutes, not weeks - Easily compare prompt performance across LLMs - Get cost and latency benchmarks for each model - Deploy on the optimal model for your use case Ship LLM features 10x faster - Automatically generate expert-level prompts - Adapt prompts to new models as they are released - Optimize prompts for quality, cost and speedStarting Price: $500/month/team -
18
AgentHub
AgentHub
AgentHub is a staging environment to simulate, trace, and evaluate AI agents in a private, sandboxed space that lets you ship with confidence, speed, and precision. With easy setup, you can onboard agents in minutes; a robust evaluation infrastructure provides multi-step trace logging, LLM graders, and fully customizable evaluations. Realistic user simulation employs configurable personas to model diverse behaviors and stress scenarios, and dataset enhancement synthetically expands test sets for comprehensive coverage. Prompt experimentation enables dynamic multi-prompt testing at scale, while side-by-side trace analysis lets you compare decisions, tool invocations, and outcomes across runs. A built-in AI Copilot analyzes traces, interprets results, and answers questions grounded in your own code and data, turning agent runs into clear, actionable insights. Combined human-in-the-loop and automated feedback options, along with white-glove onboarding and best-practice guidance. -
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Lisapet.ai
Lisapet.ai
Lisapet.ai is an advanced AI prompt testing platform that accelerates the development of AI features. Built by a team managing a AI-powered SaaS platform with over 15M users, it automates prompt testing, reducing manual effort and ensuring reliable results. Key features include a versatile AI Playground, parameterized prompts, structured outputs, and side-by-side editing. Collaborate seamlessly with automated test suites, detailed reports, and real-time analytics to optimize performance and cut costs. Ship AI features faster and with greater confidence using Lisapet.ai.Starting Price: $9/month -
20
Hamming
Hamming
Prompt optimization, automated voice testing, monitoring, and more. Test your AI voice agent against 1000s of simulated users in minutes. AI voice agents are hard to get right. A small change in prompts, function call definitions or model providers can cause large changes in LLM outputs. We're the only end-to-end platform that supports you from development to production. You can store, manage, version, and keep your prompts synced with voice infra providers from Hamming. This is 1000x more efficient than testing your voice agents by hand. Use our prompt playground to test LLM outputs on a dataset of inputs. Our LLM judges the quality of generated outputs. Save 80% of manual prompt engineering effort. Go beyond passive monitoring. We actively track and score how users are using your AI app in production and flag cases that need your attention using LLM judges. Easily convert calls and traces into test cases and add them to your golden dataset. -
21
PromptBase
PromptBase
Prompts are becoming a powerful new way of programming AI models like DALL·E, Midjourney & GPT. However, it's hard to find good-quality prompts online. If you're good at prompt engineering, there's also no clear way to make a living from your skills. PromptBase is a marketplace for buying and selling quality prompts that produce the best results, and save you money on API costs. Find top prompts, produce better results, save on API costs, and sell your own prompts. PromptBase is an early marketplace for DALL·E, Midjourney, Stable Diffusion & GPT prompts. Sell your prompts on PromptBase and earn from your prompt crafting skills. Upload your prompt, connect with Stripe, and become a seller in just 2 minutes. Start prompt engineering instantly within PromptBase using Stable Diffusion. Craft prompts and sell them on the marketplace. Get 5 free generation credits every day.Starting Price: $2.99 one-time payment -
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PromptPerfect
PromptPerfect
Welcome to PromptPerfect, a cutting-edge prompt optimizer designed for large language models (LLMs), large models (LMs) and LMOps. Finding the perfect prompt can be tough - it's the key for great AI-generated content. But don't worry, PromptPerfect has got you covered! Our cutting-edge tool streamlines prompt engineering, automatically optimizing your prompts for ChatGPT, GPT-3.5, DALLE, and StableDiffusion models. Whether you're a prompt engineer, content creator, or AI developer, PromptPerfect makes prompt optimization easy and accessible. With its intuitive interface and powerful features, PromptPerfect unlocks the full potential of LLMs and LMs, delivering top-quality results every time. Say goodbye to subpar AI-generated content and hello to prompt perfection with PromptPerfect!Starting Price: $9.99 per month -
23
Klu
Klu
Klu.ai is a Generative AI platform that simplifies the process of designing, deploying, and optimizing AI applications. Klu integrates with your preferred Large Language Models, incorporating data from varied sources, giving your applications unique context. Klu accelerates building applications using language models like Anthropic Claude, Azure OpenAI, GPT-4, and over 15 other models, allowing rapid prompt/model experimentation, data gathering and user feedback, and model fine-tuning while cost-effectively optimizing performance. Ship prompt generations, chat experiences, workflows, and autonomous workers in minutes. Klu provides SDKs and an API-first approach for all capabilities to enable developer productivity. Klu automatically provides abstractions for common LLM/GenAI use cases, including: LLM connectors, vector storage and retrieval, prompt templates, observability, and evaluation/testing tooling.Starting Price: $97 -
24
PromptPal
PromptPal
Unleash your creativity with PromptPal, the ultimate platform for discovering and sharing the best AI prompts. Generate new ideas, and boost productivity. Unlock the power of artificial intelligence with PromptPal's over 3,400 free AI prompts. Explore our great catalog of directions and be inspired and more productive today. Browse our large catalog of ChatGPT prompts and get inspired and more productive today. Earn revenue by posting prompts and sharing your prompt engineering skills with the PromptPal community.Starting Price: $3.74 per month -
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AIPRM
AIPRM
Click prompts in ChatGPT for SEO, marketing, copywriting, and more. The AIPRM extension adds a list of curated prompt templates for you to ChatGPT. Don't miss out on this productivity boost, use it now for free. Prompt Engineers publish their best prompts, for you. Experts that publish their prompts get rewarded with exposure and direct click-thrus to their websites. AIPRM is your AI prompt toolkit. Everything you need to prompt ChatGPT. AIPRM covers many different topics like SEO, sales, customer support, marketing strategy, or playing guitar. Don't waste any more time struggling to come up with the perfect prompts, let the AIPRM ChatGPT Prompts extension do the work for you! These prompts will help you optimize your website and boost its ranking on search engines, research new product strategies, and excel in sales and support for your SaaS. AIPRM is the AI prompt manager you have always wanted.Starting Price: Free -
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Promptologer
Promptologer
Promptologer is supporting the next generation of prompt engineers, entrepreneurs, business owners, and everything in between. Display your collection of prompts and GPTs, publish and share content with ease with our blog integration, and benefit from shared SEO traffic with the Promptologer ecosystem. Your all-in-one toolkit for product management, powered by AI. From generating product requirements to crafting insightful user personas and business model canvases, UserTale makes planning and executing your product strategy effortless while minimizing ambiguity. Transform text into multiple choice, true/false, or fill-in-the-blank quizzes automatically with Yippity’s AI-powered question generator. Variability in prompts can lead to diverse outputs. We provide a platform for you to deploy AI web apps exclusive to your team. This allows team members to collaboratively create, share, and utilize company-approved prompts, ensuring uniformity and excellence in results. -
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PromptLayer
PromptLayer
The first platform built for prompt engineers. Log OpenAI requests, search usage history, track performance, and visually manage prompt templates. manage Never forget that one good prompt. GPT in prod, done right. Trusted by over 1,000 engineers to version prompts and monitor API usage. Start using your prompts in production. To get started, create an account by clicking “log in” on PromptLayer. Once logged in, click the button to create an API key and save this in a secure location. After making your first few requests, you should be able to see them in the PromptLayer dashboard! You can use PromptLayer with LangChain. LangChain is a popular Python library aimed at assisting in the development of LLM applications. It provides a lot of helpful features like chains, agents, and memory. Right now, the primary way to access PromptLayer is through our Python wrapper library that can be installed with pip.Starting Price: Free -
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Entry Point AI
Entry Point AI
Entry Point AI is the modern AI optimization platform for proprietary and open source language models. Manage prompts, fine-tunes, and evals all in one place. When you reach the limits of prompt engineering, it’s time to fine-tune a model, and we make it easy. Fine-tuning is showing a model how to behave, not telling. It works together with prompt engineering and retrieval-augmented generation (RAG) to leverage the full potential of AI models. Fine-tuning can help you to get better quality from your prompts. Think of it like an upgrade to few-shot learning that bakes the examples into the model itself. For simpler tasks, you can train a lighter model to perform at or above the level of a higher-quality model, greatly reducing latency and cost. Train your model not to respond in certain ways to users, for safety, to protect your brand, and to get the formatting right. Cover edge cases and steer model behavior by adding examples to your dataset.Starting Price: $49 per month -
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LangChain
LangChain
LangChain is a powerful, composable framework designed for building, running, and managing applications powered by large language models (LLMs). It offers an array of tools for creating context-aware, reasoning applications, allowing businesses to leverage their own data and APIs to enhance functionality. LangChain’s suite includes LangGraph for orchestrating agent-driven workflows, and LangSmith for agent observability and performance management. Whether you're building prototypes or scaling full applications, LangChain offers the flexibility and tools needed to optimize the LLM lifecycle, with seamless integrations and fault-tolerant scalability. -
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Latitude
Latitude
Latitude is an open-source prompt engineering platform designed to help product teams build, evaluate, and deploy AI models efficiently. It allows users to import and manage prompts at scale, refine them with real or synthetic data, and track the performance of AI models using LLM-as-judge or human-in-the-loop evaluations. With powerful tools for dataset management and automatic logging, Latitude simplifies the process of fine-tuning models and improving AI performance, making it an essential platform for businesses focused on deploying high-quality AI applications.Starting Price: $0 -
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Athina AI
Athina AI
Athina is a collaborative AI development platform that enables teams to build, test, and monitor AI applications efficiently. It offers features such as prompt management, evaluation tools, dataset handling, and observability, all designed to streamline the development of reliable AI systems. Athina supports integration with various models and services, including custom models, and ensures data privacy through fine-grained access controls and self-hosted deployment options. The platform is SOC-2 Type 2 compliant, providing a secure environment for AI development. Athina's user-friendly interface allows both technical and non-technical team members to collaborate effectively, accelerating the deployment of AI features.Starting Price: Free -
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Ottic
Ottic
Empower tech and non-technical teams to test your LLM apps and ship reliable products faster. Accelerate the LLM app development cycle in up to 45 days. Empower tech and non-technical teams through a collaborative and friendly UI. Gain full visibility into your LLM application's behavior with comprehensive test coverage. Ottic connects with the tools your QA and engineers use every day, right out of the box. Cover any real-world scenario and build a comprehensive test suite. Break down test cases into granular test steps and detect regressions in your LLM product. Get rid of hardcoded prompts. Create, manage, and track prompts effortlessly. Bridge the gap between technical and non-technical team members, ensuring seamless collaboration in prompt engineering. Run tests by sampling and optimize your budget. Drill down on what went wrong to produce more reliable LLM apps. Gain direct visibility into how users interact with your app in real-time. -
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Atla
Atla
Atla is the agent observability and evaluation platform that dives deeper to help you find and fix AI agent failures. It provides real‑time visibility into every thought, tool call, and interaction so you can trace each agent run, understand step‑level errors, and identify root causes of failures. Atla automatically surfaces recurring issues across thousands of traces, stops you from manually combing through logs, and delivers specific, actionable suggestions for improvement based on detected error patterns. You can experiment with models and prompts side by side to compare performance, implement recommended fixes, and measure how changes affect completion rates. Individual traces are summarized into clean, readable narratives for granular inspection, while aggregated patterns give you clarity on systemic problems rather than isolated bugs. Designed to integrate with tools you already use, OpenAI, LangChain, Autogen AI, Pydantic AI, and more. -
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Freeplay
Freeplay
Freeplay gives product teams the power to prototype faster, test with confidence, and optimize features for customers, take control of how you build with LLMs. A better way to build with LLMs. Bridge the gap between domain experts & developers. Prompt engineering, testing & evaluation tools for your whole team. -
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PrompTessor
PrompTessor
PrompTessor is a web-based SaaS platform that transforms AI prompt optimization through an intelligent analysis engine delivering deep insights, detailed metrics, and actionable optimization strategies. Users submit their prompts to receive a comprehensive effectiveness score, often on a 0–100 scale, that highlights strengths and areas for improvement across core dimensions such as clarity, specificity, context, goal orientation, structure, and constraints. The system offers granular feedback with visualization of performance metrics over time, continuous progress tracking, and side-by-side comparisons of optimized prompt variations generated to enhance AI performance. An intuitive interface guides both beginners and experts through prompt refinement: interactive dashboards display heatmaps of prompt components, while automated recommendations suggest rephrasing, restructuring, or adding context to maximize output quality.Starting Price: $10 per month -
36
LangFast
Langfa.st
LangFast is a lightweight prompt testing platform designed for product teams, prompt engineers, and developers working with LLMs. It offers instant access to a customizable prompt playground—no signup required. Users can build, test, and share prompt templates using Jinja2 syntax with real-time raw outputs directly from the LLM, without any API abstractions. LangFast eliminates the friction of manual testing by letting teams validate prompts, iterate faster, and collaborate more effectively. Built by a team with experience scaling AI SaaS to 15M+ users, LangFast gives you full control over the prompt development process—while keeping costs predictable through a simple pay-as-you-go model.Starting Price: $60 one time -
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Vivgrid
Vivgrid
Vivgrid is a development platform for AI agents that emphasizes observability, debugging, safety, and global deployment infrastructure. It gives you full visibility into agent behavior, logging prompts, memory fetches, tool usage, and reasoning chains, letting developers trace where things break or deviate. You can test, evaluate, and enforce safety policies (like refusal rules or filters), and incorporate human-in-the-loop checks before going live. Vivgrid supports the orchestration of multi-agent systems with stateful memory, routing tasks dynamically across agent workflows. On the deployment side, it operates a globally distributed inference network to ensure low-latency (sub-50 ms) execution and exposes metrics like latency, cost, and usage in real time. It aims to simplify shipping resilient AI systems by combining debugging, evaluation, safety, and deployment into one stack, so you're not stitching together observability, infrastructure, and orchestration.Starting Price: $25 per month -
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PingPrompt
PingPrompt
PingPrompt is a specialized AI prompt management platform that centralizes the storage, editing, version control, testing, and iteration of prompts used with large language models, helping users treat prompts as reusable, improvable assets rather than disposable text buried in chat histories or scattered files. It provides a centralized workspace where every prompt edit is tracked with automated version history and visual diff comparisons, so users can see exactly what changed, when, and why, roll back to earlier versions, and maintain a clear audit trail while refining prompt quality over time. An inline copilot assists with targeted edits without overwriting entire prompts, and a multi-LLM testing playground lets users connect their own API keys to run the same prompt across different models and parameter settings to compare outputs, measure metrics like latency and token usage, and validate improvements before deployment.Starting Price: $8 per month -
39
DagsHub
DagsHub
DagsHub is a collaborative platform designed for data scientists and machine learning engineers to manage and streamline their projects. It integrates code, data, experiments, and models into a unified environment, facilitating efficient project management and team collaboration. Key features include dataset management, experiment tracking, model registry, and data and model lineage, all accessible through a user-friendly interface. DagsHub supports seamless integration with popular MLOps tools, allowing users to leverage their existing workflows. By providing a centralized hub for all project components, DagsHub enhances transparency, reproducibility, and efficiency in machine learning development. DagsHub is a platform for AI and ML developers that lets you manage and collaborate on your data, models, and experiments, alongside your code. DagsHub was particularly designed for unstructured data for example text, images, audio, medical imaging, and binary files.Starting Price: $9 per month -
40
Braintrust
Braintrust Data
Braintrust is the enterprise-grade stack for building AI products. From evaluations, to prompt playground, to data management, we take uncertainty and tedium out of incorporating AI into your business. Compare multiple prompts, benchmarks, and respective input/output pairs between runs. Tinker ephemerally, or turn your draft into an experiment to evaluate over a large dataset. Leverage Braintrust in your continuous integration workflow so you can track progress on your main branch, and automatically compare new experiments to what’s live before you ship. Easily capture rated examples from staging & production, evaluate them, and incorporate them into “golden” datasets. Datasets reside in your cloud and are automatically versioned, so you can evolve them without the risk of breaking evaluations that depend on them. -
41
Versuno
Versuno
Versuno is an all-in-one platform designed to organize, manage, track, test, share, and optimize all your AI assets, such as prompts, personas, contexts, system prompts, and files, in a single streamlined workspace. It gives you a personal AI assets library so you no longer hunt through scattered notes or chat histories. You get GitHub-style version control with simple one-click revert, detailed change-history tracking, and collaboration built in. The platform includes a testing playground where you can run and compare prompts across 50+ models, enabling rapid iteration and data-driven optimization. A globally searchable workspace helps you find what you need in seconds, and an AI Assets Hub lets you discover, share, and learn from proven assets. Versuno’s unified management approach replaces static tools and disparate data processes by bringing structure and governance to your AI-asset workflows. -
42
Prompt flow
Microsoft
Prompt Flow is a suite of development tools designed to streamline the end-to-end development cycle of LLM-based AI applications, from ideation, prototyping, testing, and evaluation to production deployment and monitoring. It makes prompt engineering much easier and enables you to build LLM apps with production quality. With Prompt Flow, you can create flows that link LLMs, prompts, Python code, and other tools together in an executable workflow. It allows for debugging and iteration of flows, especially tracing interactions with LLMs with ease. You can evaluate your flows, calculate quality and performance metrics with larger datasets, and integrate the testing and evaluation into your CI/CD system to ensure quality. Deployment of flows to the serving platform of your choice or integration into your app’s code base is made easy. Additionally, collaboration with your team is facilitated by leveraging the cloud version of Prompt Flow in Azure AI. -
43
Promptmetheus
Promptmetheus
Compose, test, optimize, and deploy reliable prompts for the leading language models and AI platforms to supercharge your apps and workflows. Promptmetheus is an Integrated Development Environment (IDE) for LLM prompts, designed to help you automate workflows and augment products and services with the mighty capabilities of GPT and other cutting-edge AI models. With the advent of the transformer architecture, cutting-edge Language Models have reached parity with human capability in certain narrow cognitive tasks. But, to viably leverage their power, we have to ask the right questions. Promptmetheus provides a complete prompt engineering toolkit and adds composability, traceability, and analytics to the prompt design process to assist you in discovering those questions.Starting Price: $29 per month -
44
16x Prompt
16x Prompt
Manage source code context and generate optimized prompts. Ship with ChatGPT and Claude. 16x Prompt helps developers manage source code context and prompts to complete complex coding tasks on existing codebases. Enter your own API key to use APIs from OpenAI, Anthropic, Azure OpenAI, OpenRouter, or 3rd party services that offer OpenAI API compatibility, such as Ollama and OxyAPI. Using API avoids leaking your code to OpenAI or Anthropic training data. Compare the code output of different LLM models (for example, GPT-4o & Claude 3.5 Sonnet) side-by-side to see which one is the best for your use case. Craft and save your best prompts as task instructions or custom instructions to use across different tech stacks like Next.js, Python, and SQL. Fine-tune your prompt with various optimization settings to get the best results. Organize your source code context using workspaces to manage multiple repositories and projects in one place and switch between them easily.Starting Price: $24 one-time payment -
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PromptDrive
PromptDrive
PromptDrive helps teams adopt and use AI by bringing all your prompts, chats, and teammates into one workspace. Create prompts quickly with our web app. Link to a platform, select a folder, and add notes for context. You can even leave comments to help your team use and iterate on prompts. Run and collaborate on ChatGPT, Claude, and Gemini without ever leaving PromptDrive. Just add your API keys, choose your model, and start prompting. Iterate as you go to get the response you want. Organize your prompts however you want. Our prompt management tool has built-in search so you can find, copy, and execute prompts with a few clicks. Add variables to speed up your workflow for those repetitive prompts. We make it easy to share your prompts. Each folder and prompt has a unique URL that allows you to share your work with anyone publicly and privately. Use our extension to quickly find and use the prompts you need when you need them.Starting Price: $10 per month -
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PromptPanda
PromptPanda
AI Prompt Management for Teams. Streamline your workflow with our secure prompt management tool, ensuring no perfect prompt ever gets lost again. A central prompt repository Manage your prompts effortlessly. Title, tag, and summarize them in a central repository, bringing clarity and organization to your AI usage. Discover and test new prompts Easily test and compare new prompts within PromptPanda. Analyze the results and quickly enhance your AI outcomes. Create consistency Ensure you are consistently working with the same high-quality prompts over time.Starting Price: $5/month/user -
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Langtrace
Langtrace
Langtrace is an open source observability tool that collects and analyzes traces and metrics to help you improve your LLM apps. Langtrace ensures the highest level of security. Our cloud platform is SOC 2 Type II certified, ensuring top-tier protection for your data. Supports popular LLMs, frameworks, and vector databases. Langtrace can be self-hosted and supports OpenTelemetry standard traces, which can be ingested by any observability tool of your choice, resulting in no vendor lock-in. Get visibility and insights into your entire ML pipeline, whether it is a RAG or a fine-tuned model with traces and logs that cut across the framework, vectorDB, and LLM requests. Annotate and create golden datasets with traced LLM interactions, and use them to continuously test and enhance your AI applications. Langtrace includes built-in heuristic, statistical, and model-based evaluations to support this process.Starting Price: Free -
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Aim
AimStack
Aim logs all your AI metadata (experiments, prompts, etc) enables a UI to compare & observe them and SDK to query them programmatically. Aim is an open-source, self-hosted AI Metadata tracking tool designed to handle 100,000s of tracked metadata sequences. Two most famous AI metadata applications are: experiment tracking and prompt engineering. Aim provides a performant and beautiful UI for exploring and comparing training runs, prompt sessions. -
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Dify
Dify
Dify is an open-source platform designed to streamline the development and operation of generative AI applications. It offers a comprehensive suite of tools, including an intuitive orchestration studio for visual workflow design, a Prompt IDE for prompt testing and refinement, and enterprise-level LLMOps capabilities for monitoring and optimizing large language models. Dify supports integration with various LLMs, such as OpenAI's GPT series and open-source models like Llama, providing flexibility for developers to select models that best fit their needs. Additionally, its Backend-as-a-Service (BaaS) features enable seamless incorporation of AI functionalities into existing enterprise systems, facilitating the creation of AI-powered chatbots, document summarization tools, and virtual assistants. -
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Snack Prompt
Snack Prompt
Snack Prompt is an all-in-one AI platform designed to streamline prompt creation, management, and discovery, enhancing productivity for individuals and teams. It offers a vast community-driven library of over 220,000 prompts, with more than 22 million prompts opened to date. Users can create and organize prompts, integrate them with various large language models, and utilize features like snippets and hotkeys to reduce repetitive tasks. It supports multi-model comparison, allowing users to evaluate outputs from different LLMs within a unified interface. Team-specific dashboards, known as Teamspaces, facilitate collaboration by providing tailored views and access to relevant prompts and snippets. Additional tools include the Magic Keys plugin for quick prompt insertion, a marketplace for buying and selling prompts, and the ability to generate and collect free AI images.
