token.app › Compare › Gemini 3.1 Pro Preview vs Kimi K3
Gemini 3.1 Pro Preview vs Kimi K3
Kimi K3 leads on 3 of 4 shared benchmarks. 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 | Kimi K3 | |
|---|---|---|
| Provider | Moonshot AI | |
| Input $/1M | $2.00 | $0.239 |
| Output $/1M | $12.00 | $11.94 |
| Blended $/1M | $4.50 | $3.16 |
| Context window | 1.0M | 1.0M |
| Max output | 66K | 944K |
| Released | Feb 2026 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 94.4% | 93.1% |
| FrontierMath T1–3 | 59.6% | 72.2% |
| FrontierMath T4 | 26.8% | 39.0% |
| OTIS Mock AIME | 95.6% | 97.2% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Gemini 3.1 Pro Preview if…
- Higher GPQA Diamond (94.4% vs 93.1%)
Choose Kimi K3 if…
- Costs less per token — $3.16 vs $4.50 blended
- Higher FrontierMath T1–3 (72.2% vs 59.6%)
- Higher FrontierMath T4 (39.0% vs 26.8%)
- Higher OTIS Mock AIME (97.2% vs 95.6%)
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, Gemini 3.1 Pro Preview or Kimi K3?
Across the 4 benchmarks both models have independently-run scores for, Gemini 3.1 Pro Preview leads on 1 and Kimi K3 leads on 3. Benchmarks are one input — price and context window are on this page too.
Is Gemini 3.1 Pro Preview 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 and Kimi K3 have?
Gemini 3.1 Pro Preview: 1,048,576 tokens. Kimi K3: 1,048,576 tokens.
Who makes Gemini 3.1 Pro Preview and Kimi K3?
Gemini 3.1 Pro Preview is made by Google. Kimi K3 is made by Moonshot AI.
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