Claude Opus 4.8

Claude Opus 4.8

Anthropic
LongCat-2.0

LongCat-2.0

LongCat
+
+

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About

Claude Opus 4.8 is a powerful AI model from Anthropic designed to deliver stronger coding, reasoning, agentic workflows, and advanced collaboration capabilities for developers, enterprises, and AI-powered productivity tasks. The model builds on Claude Opus 4.7 with improvements across coding benchmarks, practical knowledge work, alignment, and reliability while maintaining the same pricing structure. Claude Opus 4.8 introduces enhanced honesty and reasoning behavior, making it less likely to generate unsupported claims or overlook flaws during complex tasks such as software development and agent execution. The release also includes new features such as effort control settings, fast mode for lower-cost high-speed processing, and dynamic workflows in Claude Code that allow the system to coordinate hundreds of parallel subagents for large-scale tasks.

About

LongCat-2.0 is a 1.6 trillion total-parameter Mixture-of-Experts language model built on AI ASIC superpods, with about 48 billion parameters activated per token and strong performance across coding and agentic tasks. It is a substantial step up from previous LongCat models, combining large-scale sparse architecture with dedicated post-training for real-world software engineering, tool use, long-context reasoning, and multi-step agent workflows. LongCat-2.0 is trained and deployed entirely on AI ASIC superpods, with pretraining spanning more than 35 trillion tokens and millions of accelerator-hours, demonstrating frontier-scale training on alternative hardware platforms. To strengthen long-horizon tasks, the model introduces LongCat Sparse Attention and is trained on hundreds of billions of tokens of 1M-context data, giving it native support for ultra-long context tasks and reliable long-document understanding.

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 Not Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Claude Opus 4.8 is designed for developers, enterprises, software engineers, AI researchers, technical teams, and organizations seeking advanced AI-powered coding, reasoning, autonomous workflows, and large-scale intelligent automation capabilities

Audience

Developers and AI teams seeking a high-performance agentic model for coding, tool use, multi-step reasoning, and long-context workflows

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

Screenshots and Videos

Screenshots and Videos

Pricing

$5 per 1M (input)
$5 per million input tokens and $25 per million output tokens. Pricing for fast mode is $10 per million input tokens and $50 per million output tokens.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • Claude Opus 4.8 is easily one of the most impressive AI models I’ve used as a developer. The biggest difference compared to many other coding assistants is how well it handles complex, multi-step tasks without losing context. It feels less like a chatbot and more like an experienced engineering partner. Excellent code quality and architectural reasoning Strong long-context performance for large projects Better at identifying uncertainty and potential mistakes Produces cleaner, more maintainable code suggestions Handles complex debugging and refactoring tasks extremely well

Cons

  • Can be slower when working through deeper reasoning tasks Premium capabilities may be overkill for simple coding needs Occasionally provides more detail than necessary for straightforward questions

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

Anthropic
Founded: 2021
United States
claude.ai/

Company Information

LongCat
Founded: 2023
China
longcat.chat/blog/longcat-2.0/

Alternatives

Alternatives

Claude Sonnet 5

Claude Sonnet 5

Anthropic
GLM-5.2

GLM-5.2

Z.ai
Claude Opus 4.8

Claude Opus 4.8

Anthropic
Claude Sonnet 5

Claude Sonnet 5

Anthropic
GLM-5

GLM-5

Z.ai

Categories

AI Coding Models Supported
AI Models Supported
AI Vision Models Supported
Foundation Models Supported
Multimodal Models Supported

Categories

AI Coding Models Supported
AI Models Supported

Integrations

Claude Code Supported
Hermes Agent Supported
OpenClaw Supported
Amp Supported
CSS Supported
Claude Supported
Claude Agent SDK Supported
Claude Design Supported
Cursor Supported
GitHub Copilot Supported
Go Supported
HTML Supported
JetBrains Junie Supported
Microsoft Foundry Supported
Muse Supported
Muses Supported
ReSharper Supported
Snowflake Supported
Vercel AI Gateway Supported
XML Supported

Integrations

Claude Code Supported
Hermes Agent Supported
OpenClaw Supported
Amp Not Supported
CSS Not Supported
Claude Not Supported
Claude Agent SDK Not Supported
Claude Design Not Supported
Cursor Not Supported
GitHub Copilot Not Supported
Go Not Supported
HTML Not Supported
JetBrains Junie Not Supported
Microsoft Foundry Not Supported
Muse Not Supported
Muses Not Supported
ReSharper Not Supported
Snowflake Not Supported
Vercel AI Gateway Not Supported
XML Not Supported
Claim Claude Opus 4.8 and update features and information
Claim Claude Opus 4.8 and update features and information
Claim LongCat-2.0 and update features and information
Claim LongCat-2.0 and update features and information