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Claude Fable 5 vs Claude Opus 5 (batch)

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Claude Fable 5Claude Opus 5 (batch)
AttributeClaude Fable 5Anthropic · 52 in the newsClaude Opus 5 (batch)
Scores
Intelligence (ECI)163
Coding96
Math96
Reasoning & Knowledge89
Agentic & Tools96
Specifications
DeveloperAnthropic
FamilyClaudeClaude
ReleasedJun 9, 2026Jul 24, 2026
Parameters
AvailabilityAPI access
Context window1M1M
Price — $/M input$10.00$2.50
Price — $/M output$50.00$12.50
Inputstext, image, filetext, image, file
Outputstexttext
Benchmarks
AIME 2024/2025100%
APEX45%
ARC-AGI99%
ARC-AGI-289%
GPQA Diamond86%
Humanity's Last Exam56%
SciCode61%
SimpleBench82%
SimpleQA Verified71%
WebDev Arena1626
WeirdML92%
τ²-bench99%

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.