Augment Code vs. Devin vs. OpenAI Codex Comparison


Augment Code Harness	Devin Cognition AI	OpenAI Codex OpenAI	+
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			Related Products Retool Securely deploy vibe-coded apps in one governed platform. Build in Retool, import from tools like Claude Code, Replit, or Lovable, or connect via MCP. However your team builds, every app ships safely, with governance built in. People across your organization are already vibe-coding internal tools with no SSO, no RBAC, no audit logs, and no connection to your existing data controls. Retool is where secure vibe coding happens by default. Build from scratch, import an app from another AI builder, or connect an agent via MCP — governance lives in the platform, not in each individual app. 598 Ratings Visit Website Google AI Studio Google AI Studio is a unified development platform that helps teams explore, build, and deploy applications using Google’s most advanced AI models. It brings text, image, audio, and video models together in one interactive playground. 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Built on SearchUnifyFRAG™ (Federated Retrieval Augmented Generation) and Agentic RAG, it delivers contextually accurate, real-time responses across self-service, agent-assisted, and automated support workflows. Its product suite includes Cognitive Search, SearchUnifyGPT™, SUVA (Virtual Assistant), Knowbler, and Agent Helper. The Agentic AI Suite deploys eight specialized AI Agents handling case resolution, case classification, escalation management, knowledge management, case quality auditing, and L2 technical workflow automation. SearchUnify supports BYOLLM, enabling LLM flexibility without vendor lock-in, and uses Model Context Protocol (MCP) for secure enterprise integrations. 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Checksum integrates natively with Cursor, Claude Code, and 100+ coding agents via /checksum slash commands, so code is tested before a human ever reviews it. AI handles generation and healing on Checksum's cloud: no LLM tokens. The result: ship faster, with confidence. 2 Ratings Visit Website Jotform Trusted by over 25 million users, Jotform is an all-in-one, no-code platform that simplifies data collection, automation, and online sales. Using its drag-and-drop Form Builder, businesses can create customized forms and surveys to collect leads, payments, and e-signatures. With 10,000+ templates and advanced features like conditional logic and 200+ integrations, Jotform streamlines workflows. Jotform's AI-powered Agents provide real-time customer support, guiding users through form submissions, answering questions, and ensuring a smooth experience while reducing manual intervention. These AI agents learn from interactions to improve responses, enhancing efficiency and customer satisfaction. The platform also includes a Store Builder to sell products and services, accept payments through 30+ gateways, and tools like Approvals and Report Builder to automate workflows and generate actionable insights. 9,009 Ratings Visit Website StackAI StackAI is an enterprise AI automation platform to build end-to-end internal tools and processes with AI agents in a fully compliant and secure way. Designed for large, regulated organizations, it enables teams to automate complex workflows across operations, compliance, finance, IT, and support without heavy engineering. 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About Augment Code is an AI-powered software development platform that helps engineering teams write, understand, review, and maintain code across complex projects. Its Context Engine uses semantic indexing to analyze codebases, identify relationships between files, and retrieve relevant information from multiple repositories. The platform provides AI coding agents that assist with implementing features, debugging issues, refactoring code, and generating tests. Developers can access these capabilities through supported development environments, command-line tools, and integrations with other AI coding assistants. Augment Code also offers automated code review functionality that evaluates changes for correctness, security concerns, and architectural issues. Its agent orchestration capabilities support coordinated development workflows with human approval checkpoints and shared knowledge across engineering teams.	About Devin is an AI-driven software development assistant designed to collaborate with engineering teams to automate and accelerate coding tasks. It helps with tasks like setting up repositories, writing code, debugging, and performing migrations, all while working autonomously or alongside human developers. Devin is capable of learning from examples, making it more efficient over time. Its use has led to significant time and cost savings in large-scale projects, as seen in its deployment at Nubank, where it delivered 8-12x faster migrations and reduced costs by over 20x. Devin is particularly useful in refactoring and automating repetitive engineering tasks.	About Codex is an AI-powered coding agent from OpenAI designed to help developers build, manage, and ship software more efficiently across the entire development lifecycle. It acts as an intelligent pair programmer that can understand codebases, generate features, and deliver production-ready pull requests. Codex can safely execute commands in sandboxed environments while assisting with debugging, refactoring, and testing. A key advancement is its computer use capability, allowing it to operate your computer by seeing, clicking, and typing across applications. This enables Codex to interact with tools that don’t have APIs, making it useful for tasks like frontend testing and app navigation. The platform also includes an in-app browser and integrations with various developer tools for a more unified workflow. Codex supports automation by handling ongoing tasks such as monitoring, issue triage, and follow-ups.
Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported
Audience Software developers, engineering teams, DevOps professionals, platform engineers, technical leads, and enterprise development organizations seeking AI-assisted coding, codebase analysis, automated code reviews, and coordinated software development workflows	Audience Software development teams and engineers looking for an AI-powered assistant to automate coding tasks, improve project efficiency, and reduce costs	Audience Codex is ideal for software developers, engineering teams, and tech organizations that want to automate coding tasks, leverage AI-driven workflows, and utilize computer-based automation to accelerate software development
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported	API Offers API Supported
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Pricing $50 per developer per month Plans: Community: Free Developer: $50/month Pro: $100/month Max: $250/month Free Version Supported Free Trial Supported	Pricing $20/month Pro: $20/month Max: $200/month Free Version Supported Free Trial Supported	Pricing $20/month Free Version Supported Free Trial Supported
Reviews/Ratings Overall 5.0 / 5 ease 4.5 / 5 features 5.0 / 5 design 5.0 / 5 support 5.0 / 5 Read all reviews	Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 4.0 / 5 design 4.0 / 5 support 4.0 / 5 Read all reviews	Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 5.0 / 5 support 5.0 / 5 Read all reviews
Pros & Cons from Real Users Pros Clean, easy-to-use interface Smart, fast, and helpful AI suggestions Very responsive and human-centered support team Transparent pricing and generous gesture when issues arise The team genuinely cares about their users Augment Code's new Remote Agents feature is a game-changer for professional software engineers, particularly when working with large codebases. As a developer, I’ve never had an assistant so deeply integrated into my workflow. The AI-powered Agent knows my codebase inside and out, and it provides real-time insights, context, and suggestions, tailored specifically to my project. Whether I’m working on SDK migration, code refactoring, or documentation, the agent offers step-by-step guidance to help me navigate complex tasks with ease. One of the standout features is multi-repo code context—I no longer need to switch between multiple repositories or lose track of dependencies. This saves a tremendous amount of time and ensures I stay productive. Augment Code integrates seamlessly with popular IDEs like VS Code, IntelliJ, Vim, and even Slack, ensuring it fits perfectly into my existing workflow. Cons Minor billing hiccup when updating payment methods Initial confusion around subscription renewal While the AI Agent is impressive, the only limitation I’ve encountered is that it occasionally struggles with providing context for very specific, niche libraries or tools that are not part of the more common frameworks. However, this is a minor issue and doesn’t detract from the overall usefulness of the tool, especially when it’s highly effective with mainstream tools and codebases.	Pros & Cons from Real Users Pros I’ve found Devin to be an incredible tool for streamlining my coding process. It delivers quick and accurate code suggestions, which have really helped me reduce development time. Whether I’m tackling complex algorithms or debugging, Devin’s responses are always precise and helpful. The integration into my coding environments has been seamless, and it consistently understands the context of the project, even with minimal input. Cons While Devin is great for most coding tasks, I’ve noticed it struggles a bit with more abstract problems that require creative or unconventional solutions. Its suggestions tend to be based on patterns, which sometimes miss the mark when working on unique or highly specialized projects. Additionally, it occasionally over-explains simple solutions, making the responses longer than necessary.	Pros & Cons from Real Users Pros OpenAI Codex feels less like a coding assistant and more like a junior developer that can execute tasks independently. For knowledge workers juggling technical and non technical work, this shift is powerful because it can take a task, work through it, and return with usable results. Its ability to operate across full codebases is a major strength, allowing it to write, debug, test, and manage multiple files in a way that fits real world development workflows. The multi agent and automation capabilities are particularly useful since you can run parallel tasks and orchestrate work efficiently, which significantly improves productivity on complex projects. It is also expanding beyond pure coding with features that allow interaction with software environments, making it feel like a broader work assistant. Cons Codex can still struggle with very large or highly complex projects without iteration, and outputs often need refinement through multiple passes. The setup and workflow can feel heavier compared to simpler tools, especially when integrating with repositories or managing environments. There is also strong competition, and in some advanced or highly structured coding scenarios other tools may feel more precise.
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information Harness Founded: 2022 United States www.augmentcode.com	Company Information Cognition AI Founded: 2023 United States devin.ai/	Company Information OpenAI Founded: 2015 United States openai.com
Alternatives JetBrains Junie JetBrains	Alternatives Amp Amp Code	Alternatives Google AI Studio Google
Amp Amp Code	Devin Desktop Cognition	Perplexity Computer Perplexity AI
Aider Aider AI	Claude Code Anthropic	Bolt.new StackBlitz
Claude Code Anthropic	Goose Block	Codex CLI OpenAI
Cursor View All	Amazon Q Developer Amazon View All	Claude Code Anthropic View All
Categories Agentic AI Supported Agentic CLI Coding Tools Supported AI Code Generators Supported AI Code Review Supported AI Coding Agents Supported AI Coding Assistants Supported Vibe Coding Supported	Categories Agentic AI Supported AI Agent Builders Supported AI Agents Supported AI Code Generators Supported AI Code Refactoring Supported AI Coding Agents Supported AI Coding Assistants Supported AI-Augmented Code Modernization Tools Supported Vibe Coding Supported	Categories Agentic AI Supported Agentic CLI Coding Tools Supported AI Agents Supported AI Code Generators Supported AI Coding Agents Supported AI Coding Assistants Supported AI Computer Use Agents (CUA) Supported AI Tools Supported Vibe Coding Supported

Integrations C++ Supported GPT-5.1 Supported GPT-5.2 Supported GPT-5.2 Pro Supported GPT-5.2 Thinking Supported GPT-5.4 mini Supported GPT-5.4 nano Supported GPT-5.5 Supported GPT-5.5 Pro Supported GPT-5.6 Luna Supported GPT-5.6 Sol Supported GPT-5.6 Sol Ultrafast Supported GPT-5.6 Terra Supported GPT-6 Sol Supported GPT-6.1 Sol Supported GPT-6.1 Terra Supported Holo4 Supported JavaScript Supported PHP Supported Slack Supported Show More Integrations View All 94 Integrations	Integrations C++ Supported GPT-5.1 Supported GPT-5.2 Supported GPT-5.2 Pro Supported GPT-5.2 Thinking Supported GPT-5.4 mini Supported GPT-5.4 nano Supported GPT-5.5 Supported GPT-5.5 Pro Supported GPT-5.6 Luna Supported GPT-5.6 Sol Supported GPT-5.6 Sol Ultrafast Supported GPT-5.6 Terra Supported GPT-6 Sol Supported GPT-6.1 Sol Supported GPT-6.1 Terra Supported Holo4 Supported JavaScript Supported PHP Supported Slack Supported Show More Integrations View All 89 Integrations	Integrations C++ Supported GPT-5.1 Supported GPT-5.2 Supported GPT-5.2 Pro Supported GPT-5.2 Thinking Supported GPT-5.4 mini Supported GPT-5.4 nano Supported GPT-5.5 Supported GPT-5.5 Pro Supported GPT-5.6 Luna Supported GPT-5.6 Sol Supported GPT-5.6 Sol Ultrafast Supported GPT-5.6 Terra Supported GPT-6 Sol Supported GPT-6.1 Sol Supported GPT-6.1 Terra Supported Holo4 Supported JavaScript Supported PHP Supported Slack Supported Show More Integrations View All 284 Integrations
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