Top-end performance for paid users and developers, but at $10/$50 per million tokens, with sensitive queries routed to a weaker model.

Kenning's take

What it does

Claude Fable 5 is a Mythos-class model that Anthropic made safe for general use, and at launch it beat all of Anthropic's earlier public models on most benchmarks. Sensitive queries, for example on cybersecurity, are routed to a less capable model instead. Access was suspended for several weeks in June 2026 and restored on 1 July 2026.

• State-of-the-art results on most tested benchmarks at launch
• Strongest on long, complex tasks
• Safeguards that route some topics to Claude Opus
• API price of $10/$50 per million tokens

Who it suits. Paid Claude users and developers tackling the hardest coding, research and knowledge work.

Key facts

Category

AI models

Part of

Claude

Made by

Anthropic

Based in

United States

Released

9 June 2026

How to get it

in the API as claude-fable-5 and on major clouds; in Claude, on paid plans through usage credits or a share of weekly limits (not on Free)

Works on

Web, iOS, Android, macOS, Windows, API

In the UK

Yes

API price

$10 per million input tokens, $50 per million output tokens; cache reads $1

FAQ

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.