token.app › Compare › Gemini 3.1 Pro Preview Custom Tools vs Kimi K3

Gemini 3.1 Pro Preview Custom Tools vs Kimi K3

Kimi K3 is 1.4× cheaper per token on a blended 3:1 basis.

Head to head
Blended price uses a 3:1 input:output mix
Gemini 3.1 Pro Preview Custom ToolsKimi K3
ProviderGoogleMoonshot AI
Input $/1M$2.00$0.239
Output $/1M$12.00$11.94
Blended $/1M$4.50$3.16
Context window1.0M1.0M
Max output66K944K
ReleasedFeb 2026Jul 2026
LicenceProprietaryOpen weights
Choose Gemini 3.1 Pro Preview Custom Tools if…
  • No clear advantage on the data we hold.
Choose Kimi K3 if…
  • Costs less per token — $3.16 vs $4.50 blended
  • Open weights — self-hostable
  • Newer model (released Jul 2026)
FAQ
Which is better, Gemini 3.1 Pro Preview Custom Tools or Kimi K3?
We do not hold independently-run benchmark scores covering both Gemini 3.1 Pro Preview Custom Tools and Kimi K3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Gemini 3.1 Pro Preview Custom Tools cheaper than Kimi K3?
Kimi K3 is cheaper: $3.16 versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.239. Output alone: $12.00 vs $11.94.
What context windows do Gemini 3.1 Pro Preview Custom Tools and Kimi K3 have?
Gemini 3.1 Pro Preview Custom Tools: 1,048,576 tokens. Kimi K3: 1,048,576 tokens.
Who makes Gemini 3.1 Pro Preview Custom Tools and Kimi K3?
Gemini 3.1 Pro Preview Custom Tools is made by Google. Kimi K3 is made by Moonshot AI.
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