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Anthropic

Claude Fable 5.1 (Max)

Released 2026-09-01 · Context 1000K · Data snapshot 2026-10-22

Overall score

75.0

Ranked #1
Benchmark coverage
86.4%
19 third-party benchmarks
Context window
1000K
tokens
Input price
$10.00
Cache read $0.25
Output price
$50.00
per million tokens
OpenRouter usage
#55
291.8B tokens/day

Prices converted at snapshot-day rate (USD/CNY 6.6761)

Dimension performance

Reasoning76.5
Coding76.2
Office72.2
Human preference70.6
Above averageBelow averageAnchored at 50 (reference models’ average); every 15 points ≈ one standard deviation

Benchmark details

Coding5 items
LiveBench 2.0 · Browser100
LiveBench 2.0 · Coding97.7
AA Coding Index81.6
LiveBench 2.0 · Long Agentic80.8
AA Agentic Index57.9
Reasoning3 items
LiveBench 2.0 · Reasoning91.7
FrontierMath (Tiers 1-3)max90.2
AA Intelligence Index53.4
Office9 items
LiveBench 2.0 · Design83.4
LiveBench 2.0 · Research82
LiveBench 2.0 · Data Analysis80.3
AA Economics62.7
AA Legal60.5
AA Strategy & Ops59.7
AA Engineering56.5
AA Finance & Accounting56.4
AA Healthcare & Medical49.7
Knowledge1 items
SimpleQA Verifiedmax70.8
Human preference1 items
LMArena Human Blind Vote1502.5785

Multiple reasoning tiers of the same benchmark take the best value; raw scores have different scales and are not comparable across benchmarks.

Score trend

2026-10-202026-10-22
View daily data
2026-10-2275.0
2026-10-2174.8
2026-10-2074.8
Scores and prices come from third-party public data (Artificial Analysis / LMArena / OpenRouter). 50 is the reference models’ average; every 15 points ≈ one standard deviation. Prices are converted at snapshot-day rates and provided for reference only. Return to LLM Leaderboard.