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Claude Fable 5 vs GLM-5.2
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Scores
Intelligence (ECI)161153
Coding10088
Math9741
Reasoning & Knowledge9777
Agentic & Tools97100
Specifications
DeveloperAnthropicZ.ai (Zhipu AI)
FamilyClaude—
ReleasedJun 9, 2026Jun 16, 2026
Parameters——
AvailabilityAPI accessOpen weights (unrestricted)
Context window1M1M
Price — $/M input$10.00$0.93
Price — $/M output$50.00$3.00
Inputstext, image, filetext
Outputstexttext
Benchmarks
AIME 2024/2025100%86%
APEX45%—
GPQA Diamond93%92%
Humanity's Last Exam53%40%
SciCode60%51%
SimpleBench82%—
SimpleQA Verified68%38%
WebDev Arena16541593
WeirdML88%70%
τ²-bench99%99%
SWE-bench Verified—79%
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.