Claude Fable 5.1

Every figure OnlySOTA holds for this model, one source at a time. Nothing on this page is averaged across sources.

SOTA

Identity

Developer

Anthropic

Family

Claude → Claude Fable

Weights

closed

Blended Price, USD per 1M tokens (3:1 input:output)

$20.00

Sources

2 sources · 6 entries · 6 configs

Published upstream as

Claude Fable 5.1claude-fable-5-1

Where it places

• Artificial Analysis LLM Leaderboard Artificial Analysis Intelligence Index 53.4
• Arena — Agent Overall #1 0.139

Effort ladder

• Artificial Analysis LLM Leaderboard max wins

  1. low 47.0
  2. medium 49.1
  3. high 51.2
  4. xhigh 53.2
  5. max 53.4

• Arena — Agent agent only max ran

  1. max 0.139