A

Claude Fable 5.1

Multimodalby Anthropic·Model page

No description available for this model yet.

Max output

Most tokens the model can return in a single response.

128Ktokens
Reasoning
Reasoning-first model

Works through a step-by-step chain of thought before answering.

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Design Arena

Design Arena ranks models on real-world front-end and design tasks — websites, UI components, data viz, SVG and more — through head-to-head human votes, scored as an ELO rating.
CategoryELOWin rateRank
Game dev142969.9%#1
3D142770.3%#2
Data viz136763.7%#2
Code134559.4%#2
SVG134464.5%#2

Pricing

per 1M tokens
Input$10 /1M
Output$50 /1M
Cache read$0.25 /1M
Cache write$12.5 /1M
Web search$0.01

Model Description

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

Author
A
Anthropic
Organization
anthropic
Details
Downloads
Likes
AccessClosed Source
Context1M tokens
Input price$10 /1M
Output price$50 /1M
CreatedSep 1, 2026
Updated
View on Hugging Face
Benchmarks
Intelligence56.8
Coding81.6
Agentic58.2
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Claude Fable 5.1 — AI Model Details | Applied