Kimi K2.5 vs Step 3.7 Flash
Moonshot AI vs StepFun — benchmarks, pricing, and capabilities side by side.
- •Step 3.7 Flash is cheaper ($0.20 vs $0.40 per 1M input)
- •Kimi K2.5 has a larger context window (262K)
| Kimi K2.5 | Step 3.7 Flash | |
|---|---|---|
| Intelligence index | 65.5 | — |
| Developer | Moonshot AI | StepFun |
| Type | Multimodal | Multimodal |
| Access | Open weights | API only |
| Context window | 262,144 tokens | 256,000 tokens |
| Input price | $0.40 / 1M | $0.20 / 1M |
| Output price | $1.90 / 1M | $1.15 / 1M |
| Speed | 35 tok/s | — |
| Released | January 27, 2026 | May 28, 2026 |
| Parameters | 1T (32B active) | — |
| Input modalities | Text, Image | Text, Image, Video |
| Output modalities | Text | Text |