Anthropic releases Fable 5.2

Anthropic released the Claude Fable 5.2 and Claude Mythos 5.2 models on November 9, 2026 — Fable 5.2 responds up to 30% faster than version 5.1, costs $8/$40 per million input/output tokens, and outperforms Claude Opus 5.5 in benchmarks on almost all metrics.

Compiled by Sergey KostenchukPublished 2026-11-09Updated 2026-11-10

2026-11-09 Research Anthropic

🤖 Anthropic releases Fable 5.2

On November 9, 2026, Anthropic introduced Claude Fable 5.2 and Claude Mythos 5.2 — updated models for complex technical tasks. Fable 5.2 responds up to 30% faster than version 5.1, and the price has been reduced to $8/$40 per million input/output tokens.

🌍 Cheaper and faster flagship: a 20% price cut from the previous generation with a 30% speed increase — the economics of agentic pipelines are changing. In benchmarks, Fable 5.2 outperforms Opus 5.5 on almost all metrics: 49.1% on FrontierCode 2.0 and 74.6% on Terminal-Bench-Science.

👤 For Pro, Max, Ultra, and Team subscribers, the model is already available with up to a 50% weekly limit and 1–3 additional limit resets. In the API, claude-fable-5-2 offers a 1M token context, 128K output, and a batch mode with a 50% discount.

Source 1: https://www.anthropic.com/claude-fable-and-mythos-5-2

Source 2: https://platform.claude.com/docs/en/models/fable-5-2/overview

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