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Kimi K2 vs Kimi K2.6
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Scores
Intelligence (ECI)141151
Coding1079
Math376
Reasoning & Knowledge1368
Agentic & Tools2087
Specifications
DeveloperMoonshotMoonshot
FamilyKimiKimi
ReleasedJul 11, 2025Apr 20, 2026
Parameters1T1T
AvailabilityOpen weights (restricted use)Open weights (unrestricted)
Context window131K262K
Price — $/M input$0.57$0.55
Price — $/M output$2.30$3.20
Inputstexttext, image
Outputstexttext
Benchmarks
AIME 2024/202557%96%
GPQA Diamond77%91%
GSO (code optimization)5%—
Humanity's Last Exam7%36%
LiveCodeBench56%—
MMLU-Pro82%—
SciCode35%54%
SimpleBench26%—
Terminal-Bench28%—
WeirdML39%56%
τ²-bench61%96%
FrontierMath—39%
FrontierMath Tier 4—15%
SimpleQA Verified—39%
SWE-bench Verified—77%
WebDev Arena—1526
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.