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Claude Fable 5 vs gpt-oss-120b

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Claude Fable 5gpt-oss-120b
AttributeClaude Fable 5Anthropic · 52 in the newsgpt-oss-120bOpenAI · 2 in the news
Scores
Intelligence (ECI)163140
Coding9635
Math9642
Reasoning & Knowledge8915
Agentic & Tools947
Specifications
DeveloperAnthropicOpenAI
FamilyClaudeGPT
ReleasedJun 9, 2026Aug 5, 2025
Parameters116.8B
AvailabilityAPI accessOpen weights (unrestricted)
Context window1M131K
Price — $/M input$10.00$0.03
Price — $/M output$50.00$0.17
Inputstext, image, filetext
Outputstexttext
Benchmarks
AIME 2024/2025100%89%
APEX64%4%
ARC-AGI99%
ARC-AGI-289%
GPQA Diamond86%76%
Humanity's Last Exam56%20%
SciCode61%34%
SimpleBench82%22%
SimpleQA Verified71%14%
WebDev Arena1628
WeirdML92%48%
τ²-bench99%66%
LiveCodeBench88%
METR task horizon42 min
MMLU-Pro81%
Terminal-Bench19%

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.