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Claude Fable 5 vs Mistral Small 4

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Claude Fable 5Mistral Small 4
AttributeClaude Fable 5Anthropic · 52 in the newsMistral Small 4Mistral AI · 1 in the news
Scores
Intelligence (ECI)163
Coding9621
Math96
Reasoning & Knowledge8913
Agentic & Tools9612
Specifications
DeveloperAnthropicMistral AI
FamilyClaudeMistral
ReleasedJun 9, 2026Mar 16, 2026
Parameters
AvailabilityAPI accessOpen weights (unrestricted)
Context window1M
Price — $/M input$10.00
Price — $/M output$50.00
Inputstext, image, file
Outputstext
Benchmarks
AIME 2024/2025100%
APEX45%
ARC-AGI99%
ARC-AGI-289%
GPQA Diamond86%77%
Humanity's Last Exam56%10%
SciCode61%39%
SimpleBench82%
SimpleQA Verified71%
WebDev Arena1626
WeirdML92%
τ²-bench99%41%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.