Anthropic's Fable AI brings the capabilities of its unreleased Mythos model to regular users

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Engadget · 3 min read · tech

Anthropic released Fable 5, a new AI model bringing capabilities from its Mythos system to public Claude subscribers. Fable outperformed GPT-5.5 and Gemini 3.1 Pro in testing, with particular strength in software engineering, document analysis, and vision tasks. Available free until June 22.

Mentioned entities

Anthropic Apple Claude Claude 3.7 Sonnet Fable Fable 5 FireRed GPT-5.5 Gemini 3.1 Pro Google Mythos Mythos 5 Nvidia OpenAI Opus 4.8 Pokémon Red Project Glasswing

Appeared in 2026-06-10.