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Kimi K3 vs Ox Alpha

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Kimi K3Ox Alpha
AttributeKimi K3Moonshot · 47 in the newsOx Alpha— · 3 in the news
Scores
Intelligence (ECI)158—
Coding94—
Math73—
Reasoning & Knowledge69—
Agentic & Tools66—
Specifications
DeveloperMoonshot—
FamilyKimi—
ReleasedJul 16, 2026Aug 20, 2026
Parameters2.8T—
AvailabilityOpen weights (non-commercial)—
Context window1M1M
Price — $/M input$1.44—
Price — $/M output$9.00—
Inputstext, image, videotext, image, video
Outputstexttext
Benchmarks
AIME 2024/202597%—
APEX51%—
ARC-AGI95%—
ARC-AGI-260%—
GPQA Diamond93%—
Humanity's Last Exam47%—
SciCode60%—
SimpleBench61%—
SimpleQA Verified51%—
WebDev Arena1674—
WeirdML83%—

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.