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Claude Fable 5 vs Muse Spark

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Claude Fable 5Muse Spark
AttributeClaude Fable 5Anthropic · 52 in the newsMuse SparkMeta AI · 3 in the news
Scores
Intelligence (ECI)163152
Coding9163
Math9158
Reasoning & Knowledge8674
Agentic & Tools9257
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%
APEX64%—
ARC-AGI99%—
ARC-AGI-289%—
GPQA Diamond86%90%
GSO (code optimization)78%—
Humanity's Last Exam56%41%
SciCode61%52%
SimpleBench82%—
SimpleQA Verified71%66%
WebDev Arena16281513
WeirdML92%—
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.

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