Kimi K2 is cheaper than Gemini 2.5 Pro Experimental at $0.57/M vs $1/M input tokens.
| Spec | Gemini 2.5 Pro Experimental | Kimi K2 |
|---|---|---|
| Input price | $1/M tokens | $0.57/M tokens |
| Output price | $2/M tokens | $2.3/M tokens |
| Context window | 1.0M tokens | — |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Mar 2025 | Jul 2025 |
| SWE-bench Verified | 63.8% | 65.8% |
Not enough votes to call it. On the specs, Gemini 2.5 Pro Experimental has the edge: bigger context window, major provider backing.
Gemini 2.5 Pro Experimental wins Web Design and Reasoning.
Kimi K2 wins input (1.8× cheaper)·Gemini 2.5 Pro Experimental wins output (1.1× cheaper)
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Kimi K2 uses 53.8x more emoji