Claude Fable 5.2

Claude Fable 5.2

Anthropic
5.0 out of 5 stars
MiniMax M3.1 Flash

MiniMax M3.1 Flash

MiniMax
5.0 out of 5 stars
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About

Claude Fable 5.2 is an advanced AI reasoning model developed by Anthropic for complex software engineering, scientific research, technical problem-solving, and autonomous agent workflows. The model provides improvements in coding, mathematical reasoning, visual understanding, and long-running task execution compared with previous Claude Fable models. Its agentic capabilities allow AI systems to analyze large codebases, coordinate multiple subagents, develop software, investigate technical problems, and automate complex business processes. Claude Fable 5.2 generates outputs up to 30% faster than Fable 5.1 and offers an optional fast mode that increases generation speed by up to 2.5 times. The model includes configurable reasoning effort, advanced tool use, and specialized cybersecurity and biology safeguards designed to reduce misuse while supporting general technical work.

About

MiniMax M3.1 Flash is a hosted large language model for developers building coding assistants, AI agents, and software applications. Available through MiniMax’s API and MiniMax Code, it accepts text, image, and video input and generates text responses. Documented uses include code generation and debugging, multi-step reasoning, tool use, codebase and document analysis, and computer-use workflows. The API offers a context window of up to 1 million tokens, adjustable reasoning effort, and OpenAI-compatible and Anthropic-compatible request formats. Usage is billed by input, output, and cached-input tokens. MiniMax provides documentation for API integration and model use. M3.1 Flash is available through the hosted API, M Plan, and MiniMax Code; model weights are planned for a later release.

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 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

Audience

Software engineers, AI developers, machine learning researchers, autonomous agent developers, scientific researchers, mathematicians, data scientists, robotics engineers, hardware designers, DevOps professionals, enterprise technology teams, and organizations seeking frontier AI reasoning, autonomous software engineering, complex research automation, advanced coding, technical analysis, and multi-agent workflow orchestration

Audience

Software developers and organizations building coding assistants, AI agents, and applications that use a hosted language model.

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 Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$8 per 1M tokens (input)
$8 per million input tokens and $40 per million output tokens
Free Version Not Supported
Free Trial Not Supported

Pricing

$0.15/1M input tokens
Input: $0.15 per 1 million tokens; output: $0.60 per 1 million tokens; cached input: $0.015 per 1 million tokens. Standard pay-as-you-go billing in USD, based on token usage.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

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

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5

Pros & Cons from Real Users

Pros

  • Fable 5.2 feels like the model I reach for when I have something genuinely difficult and do not want to babysit it the whole way through. The biggest upgrade for me is how well it handles ambiguous, long-running work. I can give it a messy engineering task or a loose idea and it does a much better job figuring out the path, delegating pieces, correcting itself, and actually getting to the finish line.

Cons

  • My only complaint is that this is still a model I would save for the hard stuff. Anthropic itself recommends starting with Opus 5.5 for normal coding and knowledge work, then stepping up to Fable when the task really justifies it.

Pros & Cons from Real Users

Pros

  • It feels noticeably faster than M3 while still being strong enough for coding, research, computer-use tasks, and longer agent workflows. The 1M-token context window is a big advantage too. I can keep large repos, long documents, screenshots, video context, and a lot of prior agent history in the same session without constantly trimming things down. The pricing is probably the best part. At $0.15 per million input tokens and $0.60 per million output tokens, I can run it heavily without worrying that every agent loop is getting expensive. I also like how much MiniMax improved the agent side. M3.1 Flash is aimed at real multi-step work across coding, enterprise automation, computer use, and even cybersecurity, rather than just fast chat responses.

Cons

  • The main downside is that reasoning is always enabled, so it is not quite as lightweight as a pure instant-response model for trivial tasks.

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

MiniMax
Founded: 2022
China
www.minimax.io/blog/minimax-m31f

Alternatives

Alternatives

Claude Fable 5.2

Claude Fable 5.2

Anthropic
5.0 out of 5 stars
GPT-6.1 Terra

GPT-6.1 Terra

OpenAI
5.0 out of 5 stars
GPT-6.1 Sol

GPT-6.1 Sol

OpenAI
5.0 out of 5 stars
GPT-6.1 Terra

GPT-6.1 Terra

OpenAI
5.0 out of 5 stars
Claude Fable 5.1

Claude Fable 5.1

Anthropic
5.0 out of 5 stars
MiniMax M3

MiniMax M3

MiniMax
5.0 out of 5 stars
Claude Fable 5

Claude Fable 5

Anthropic
5.0 out of 5 stars
MiniMax

MiniMax

MiniMax 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
Foundation Models Supported
Multimodal Models Supported

Integrations

BLACKBOX AI Supported
Claude Code Supported
Clawd.run Supported
Factory Droid Supported
Hermes Agent Supported
Model Context Protocol (MCP) Supported
OpenClaw Supported
OpenTag Supported
Pi Agent Supported
Bind AI Supported
Bolt.new Supported
Buda Supported
Claude Max Supported
DataGrip Supported
GitHub Copilot CLI Supported
Lua Supported
Objective-C Supported
Perplexity Pro Supported
Shipper.now Supported
Vellum Supported

Integrations

BLACKBOX AI Supported
Claude Code Supported
Clawd.run Supported
Factory Droid Supported
Hermes Agent Supported
Model Context Protocol (MCP) Supported
OpenClaw Supported
OpenTag Supported
Pi Agent Supported
Bind AI Not Supported
Bolt.new Not Supported
Buda Not Supported
Claude Max Not Supported
DataGrip Not Supported
GitHub Copilot CLI Not Supported
Lua Not Supported
Objective-C Not Supported
Perplexity Pro Not Supported
Shipper.now Not Supported
Vellum Not Supported
Claim Claude Fable 5.2 and update features and information
Claim Claude Fable 5.2 and update features and information
Claim MiniMax M3.1 Flash and update features and information
Claim MiniMax M3.1 Flash and update features and information