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Claude Fable 5 vs Muse Spark
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Scores
Intelligence (ECI)161155
Coding10084
Math9769
Reasoning & Knowledge9786
Agentic & Tools9762
Specifications
DeveloperAnthropicMeta AI
FamilyClaude—
ReleasedJun 9, 2026Apr 8, 2026
Parameters——
AvailabilityAPI accessAPI access
Context window1M—
Price — $/M input$10.00—
Price — $/M output$50.00—
Inputstext, image, file—
Outputstext—
Benchmarks
AIME 2024/2025100%89%
APEX45%—
GPQA Diamond93%90%
Humanity's Last Exam53%41%
SciCode60%52%
SimpleBench82%—
SimpleQA Verified68%66%
WebDev Arena16541513
WeirdML88%—
τ²-bench99%92%
FrontierMath—39%
FrontierMath Tier 4—15%
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.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.