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Claude Fable 5

Name: Claude Fable 5
Author: Anthropic

by Anthropic

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 sup

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Models

Claude Fable 5

Added 10 July 2026

#anthropic

Overview

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...

How to use / API access

Call via OpenRouter with model id `anthropic/claude-fable-5`.

openrouter · anthropic/claude-fable-5 Docs

OpenRouter id: anthropic/claude-fable-5

Benchmarks

Intelligence Index (artificial-analysis) : 59.9 index
Coding Index (artificial-analysis) : 76.5 index
Agentic Index (artificial-analysis) : 52.8 index
Design Arena agentichtmlslides (other) : 1254 elo · #1
Design Arena agenticslides(html) (other) : 1252 elo · #1
Design Arena fullstack (other) : 1289 elo · #4
Design Arena htmlslides (other) : 1256 elo · #1

Notes

Claude Fable 5 is listed in the EDNA Models directory from the OpenRouter catalogue.

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