Claude Fable 5 vs Qwen3.8-Max

Claude Fable 5 (Anthropic) and Qwen3.8-Max (Alibaba Qwen) compared on price, context window, speed and independent benchmarks. Claude Fable 5 scores higher on the Artificial Analysis Intelligence Index (49.6 vs 45.4), while Qwen3.8-Max is 6.7× cheaper on a blended basis. Pick Claude Fable 5 for the hardest tasks and Qwen3.8-Max when cost dominates.

Claude Fable 5Qwen3.8-Max
ProviderAnthropicAlibaba Qwen
Input $/1M$10.0$2.00
Output $/1M$50.0$6.00
Blended $/1M (3:1)$20.0$3.00
Cached input $/1M$1.00$0.25
Context window1M1M
Knowledge cutoff2026-01—
Licenseproprietaryproprietary
Speed (tok/s)6839
Artificial Analysis Intelligence Index49.645.4
LMArena Elo14931481
GPQA Diamond92.6%92.8%
AIME99.7%*—
SWE-bench Verified95%—
MMLU-Pro91.5%*—
Humanity's Last Exam55.5%43.1%

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