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Gemini 3.5 Flash vs Kimi K2

Kimi K2 leads in 4 of 8 categories

Arena ELO

Kimi K2

Cheaper

Kimi K2

Faster

Kimi K2

Detailed Comparison

CategoryGemini 3.5 FlashKimi K2
ProviderGoogle Moonshot
Context Window1M WIN128K
Input Price ($/1M)$1.5 $0.55 WIN
Output Price ($/1M)$9 $2.2 WIN
Arena ELON/A 1380 WIN
CodingN/A 65.8% SWE-bench
ReasoningN/A 60.2% BrowseComp
Speed (tokens/sec)N/A ~50 t/s WIN
Open SourceNo Yes

Frequently Asked Questions

Which is cheaper, Gemini 3.5 Flash or Kimi K2?

Kimi K2 is approximately 74% cheaper than Gemini 3.5 Flash per million tokens.

Which is better for coding, Gemini 3.5 Flash or Kimi K2?

Gemini 3.5 Flash scores N/A on coding benchmarks, while Kimi K2 scores 65.8% SWE-bench.

Which has a larger context window?

Gemini 3.5 Flash supports 1M context, while Kimi K2 supports 128K.

Is Gemini 3.5 Flash or Kimi K2 open source?

Gemini 3.5 Flash is proprietary. Kimi K2 is open source.