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Claude Fable 5.1 (Xhigh, Default Fallback)

Anthropic · Released 2026-09-01 · Independent benchmark scores from Artificial Analysis

Intelligence Index
53.2
Output speed
56.5
tokens/sec
Blended price
$20.00
per 1M tokens
Time to first token
50.68s

Model metadata

Model ID9b166bf3-42db-4f63-8338-1c4a1244ffe8
Slugclaude-fable-5-1-xhigh
Release date2026-09-01
ProviderAnthropic
Provider sluganthropic
Output speed56.5 tok/s
Time to first token50.68s
Time to first answer50.68s
Blended price ($/1M)$20.00
Input price ($/1M)$10.00
Output price ($/1M)$50.00

All evaluation scores (18)

aime—
aime 25—
artificial analysis coding index80.70
artificial analysis intelligence index53.20
artificial analysis math index—
gpqa93.4%
hle58.7%
ifbench—
lcr83.0%
livecodebench—
math 500—
mmlu pro—
scicode60.9%
tau banking45.8%
tau2—
terminalbench hard—
terminalbench v2 191.0%
terminalbench v4 055.1%

Source: artificialanalysis.ai/models/claude-fable-5-1-xhigh

Benchmark data from Artificial Analysis.