Gemini 3.1 Pro Preview vs Kimi K3
Price, context and benchmark scores side by side — every number from the live model catalogue.
| Gemini 3.1 Pro Previewgoogle | Kimi K3moonshotai | |
|---|---|---|
| Input / 1M tokens | $2.00 | $3.00 |
| Output / 1M tokens | $12.00 | $15.00 |
| 1M in + 300K out | $5.60 | $7.50 |
| Context window | 1.0M | 1.0M |
| Intelligence index | 46.5 | 57.1 |
| Coding index | 68.8 | 76.2 |
| Agentic index | 21.4 | 50.1 |
| Cheapest provider | BaseTen | |
| Providers serving it | 2 | 6 |
| Weights | Closed | Open |
| Image input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
| Released | Feb 19, 2026 | Jul 16, 2026 |
Which one to pick
Pick Gemini 3.1 Pro Preview if…
- Token cost matters: $12.00 per 1M output vs $15.00.
Pick Kimi K3 if…
- You want the higher general-intelligence score (57.1).
- Code quality is the priority — it leads on the coding index (76.2).
- You are running agent loops — higher agentic index (50.1).
- You need the bigger context window (1.0M).
- You want the option to self-host — weights are public.
- You want provider redundancy: 6 providers serve it.
FAQ
Is Gemini 3.1 Pro Preview better than Kimi K3?
Kimi K3 scores higher on general intelligence (46.5 vs 57.1), while Gemini 3.1 Pro Preview is 1.3× cheaper per output token ($12.00 vs $15.00). For code, Kimi K3 leads (76.2 coding index). Kimi K3 takes the larger context at 1.0M.
Which is cheaper, Gemini 3.1 Pro Preview or Kimi K3?
Gemini 3.1 Pro Preview, at $12.00 per 1M output tokens versus $15.00. On a 1M input + 300K output workload that is $5.60 against $7.50.
Can I self-host Gemini 3.1 Pro Preview or Kimi K3?
Gemini 3.1 Pro Preview: closed weights, API only. Kimi K3: open weights (moonshotai/Kimi-K3).