Claude Fable 5
Closed
Claude Fable 5 is Anthropic's most capable widely released model, built for the most demanding reasoning and long-horizon agentic work. Shares its base model with the invitation-only Claude Mythos 5.
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Context
1M
Input
$12.50
/1M tok
Output
$50
/1M tok
Blended
$21.88
#413/ 421/1M · 3:1
Speed
55
#163/ 421tok/s
Cache read
$1
0.08x input
Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter
Reported on 13 evals across 12 domains - best 88.0% on Terminal-Bench · #1 of 5