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Kimi K2 vs Kimi K2.6

Kimi K2 (Moonshot) and Kimi K2.6 (Moonshot) compared on benchmarks, pricing, context window, and use-case rankings.

Kimi K2Moonshot · 39 in the newsKimi K2.6Moonshot · 7 in the news
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%
FrontierMath39%
FrontierMath Tier 415%
SimpleQA Verified39%
SWE-bench Verified77%
WebDev Arena1526

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.

Frequently asked questions

Is Kimi K2 better than Kimi K2.6?

On Epoch AI's Capabilities Index, Kimi K2.6 scores higher (151) than Kimi K2 (141). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.

Which is cheaper, Kimi K2 or Kimi K2.6?

Kimi K2.6 is cheaper on input tokens at $0.55 per million, versus $0.57 (representative OpenRouter pricing).

Which has a larger context window, Kimi K2 or Kimi K2.6?

Kimi K2.6 supports up to 262K tokens, compared with 131K for the other.

Which is better for coding, Kimi K2 or Kimi K2.6?

Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Kimi K2.6 ranks higher — 79th vs 10th percentile among the models tracked on Model Beat.

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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.