AI
Overview
About this model
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, with reasoning support and a 1M-token context window. It is suited for long-running, complex, and asynchronous tasks that previously required frequent human check-ins. It is particularly strong at end-to-end work that would otherwise take a person hours, days, or weeks - taking on problems that are long-running, ambiguous, or highly multi-step. It executes well-scoped tasks with few mistakes, automatically self-correcting through verification loops, and ships with robust safeguards.
- Context window
- 1000000
- Category
- -
- Last updated
- 2026-10-03
- Providers
- -
Performance
Usage and availability
Last 14 days
Requests over timeDaily volume
Availability over timeDaily success rate
Cache hit rateDaily cache reads
API endpoints
Supported parameters
Availability
Providers
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| Provider | Route | Pricing | Cache hit | TTFT | Output speed (TPS) | Availability |
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Provider performanceAll active provider routes
API access
Request example
Choose a protocol and copy a ready-to-run request.
POST/v1/responses