Claude Fable 5
🧠 AI Modelanthropic
Top-ranked reasoning model with 1M token context for autonomous coding and knowledge tasks.
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output. Key features include include_reasoning, max_completion_tokens, max_tokens, reasoning, response_format, stop, structured_outputs, and tool_choice. The model boasts a context length of 1,000,000 tokens, allowing it to process large documents and complex contexts. Pricing is set at $10.00 per million input tokens and $50.00 per million output tokens. On the OpenRouter platform, Claude Fable 5 has achieved top rankings on benchmarks: #1 in agentichtmlslides (ELO 1254), #1 in agenticslides(html) (ELO 1252), and #1 in 3D (ELO 1371). This indicates state-of-the-art performance in agentic tasks, code generation, and multimodal understanding. The model's reasoning support and structured outputs make it suitable for high-reliability applications such as automated debugging, document analysis, and interactive agents.
💡Highlights
- ├─1M token context length
- ├─Top-ranked on agentic benchmarks
- └─Reasoning and structured outputs
🎯For
- ├─Developers
- ├─AI researchers
- └─Automation engineers