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Gemini 3.5 Flash vs Kimi K2.5

Head to head on 26 shared benchmarks, with price, context window, and release dates.

Benchmark scores

40

evals · sort by any column, ⤢ to expand fullscreen

Model
Gemini 3.5 Flash

Google (Alphabet Inc.)

64.7%26.0%71.857.9%39.0%92.2%42.7%76.3%78.9%78.2%64.9%75.6%84.6%88.2%82.0%76.3%55.8%76.6%68.1%49.9%53.1%74.4%40.9%53.1%48.7%95.3%-1087elo------31.0%----62.9%64.3%
Kimi K2.5

Moonshot AI

68.3%39.0%74.935.8%27.9%87.9%30.7%70.2%72.5%77.9%61.4%57.4%77.7%84.9%76.0%62.0%39.3%76.4%66.5%49.9%49.0%74.2%34.8%26.3%17.5%95.9%96.1-1576elo95.478.5%1042187.163.3%-7367.3%70.8%69.4-60.0%
2 / 2 models
AttributeGemini 3.5 Flash

Google (Alphabet Inc.)

Kimi K2.5

Moonshot AI

DescriptionGemini 3.5 Flash is an AI model from Google (Alphabet Inc.).Kimi K2.5 is an AI model from Kimi.
FamilyGeminiKimi
Params--
Open weightsclosedclosed
LicenseproprietaryModified MIT
Released19 May 202627 Jan 2026
Context1,048,576262,144
Input $/1M$1.50$0.60
Output $/1M$9.00$3.00
Cache read $/1M$0.150$0.070
Cache write $/1M$0.083-
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiestext, image, video, file, audiotext, image
Providers--
PublisherGoogle (Alphabet Inc.)Moonshot AI
Reported scores

FAQ

Is Gemini 3.5 Flash or Kimi K2.5 better?
Across the 26 benchmarks both models report on Sophon, Gemini 3.5 Flash leads on 22 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do Gemini 3.5 Flash and Kimi K2.5 compare on GPQA Diamond?
Gemini 3.5 Flash scores 92.2% and Kimi K2.5 scores 87.9% on GPQA Diamond.
Which is cheaper, Gemini 3.5 Flash or Kimi K2.5?
Kimi K2.5 is cheaper at $3.00 per million output tokens against $9.00 for Gemini 3.5 Flash - about 3.0x.
When were Gemini 3.5 Flash and Kimi K2.5 released?
Gemini 3.5 Flash was released 19 May 2026 by Google (Alphabet Inc.). Kimi K2.5 was released 27 Jan 2026 by Moonshot AI.

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