Gemini 3.1 Pro Custom Tools vs Kimi K2.5
Google vs Moonshot AI — benchmarks, pricing, and capabilities side by side.
- •Kimi K2.5 is cheaper ($0.40 vs $2.00 per 1M input)
- •Gemini 3.1 Pro Custom Tools has a larger context window (1M)
| Gemini 3.1 Pro Custom Tools | Kimi K2.5 | |
|---|---|---|
| Intelligence index | — | 87.9 |
| Developer | Moonshot AI | |
| Type | Multimodal | Multimodal |
| Access | API only | Open weights |
| Context window | 1,048,756 tokens | 262,144 tokens |
| Input price | $2.00 / 1M | $0.40 / 1M |
| Output price | $12.00 / 1M | $1.90 / 1M |
| Speed | — | 35 tok/s |
| Released | February 25, 2026 | January 27, 2026 |
| Parameters | — | 1T (32B active) |
| Input modalities | Text, Audio, Image, Video | Text, Image |
| Output modalities | Text | Text |