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Claude Fable 5 vs GPT-6.1 Sol

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Claude Fable 5GPT-6.1 Sol
AttributeClaude Fable 5Anthropic · 52 in the newsGPT-6.1 SolOpenAI · 1 in the news
Scores
Intelligence (ECI)163—
Coding9498
Math9191
Reasoning & Knowledge8898
Agentic & Tools9285
Specifications
DeveloperAnthropicOpenAI
FamilyClaudeGPT
ReleasedJun 9, 2026Sep 29, 2026
Parameters——
AvailabilityAPI accessAPI access
Context window1M1.1M
Price — $/M input$10.00$2.00
Price — $/M output$50.00$10.00
Inputstext, image, filefile, image, text
Outputstexttext
Benchmarks
AIME 2024/2025100%100%
APEX64%60%
ARC-AGI99%—
ARC-AGI-289%—
GPQA Diamond86%95%
Humanity's Last Exam56%—
SciCode61%—
SimpleBench82%—
SimpleQA Verified71%74%
WebDev Arena16281759
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.