Kimi K2 Instruct vs Gemini 3 Flash
Kimi K2 Instruct is cheaper on output tokens, while Gemini 3 Flash offers a larger context window. Choose Kimi K2 Instruct or Gemini 3 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2 Instruct | Gemini 3 Flash |
|---|---|---|
| Provider | Cortecs | OpenCode |
| Input / 1M tokens | $0.55 | $0.50 |
| Output / 1M tokens | $2.65 | $3.00 |
| Context window | 131K | 1M |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Jul 2025 | Dec 2025 |
| SWE-bench Verified score | 53.4 | — |
| LMArena (Chatbot Arena) Elo score | — | 1466 |
| Epoch Capabilities Index score | — | 152 |
| SWE-bench Multilingual score | — | 72.7 |
| LMArena WebDev Elo score | — | 1440 |
| LMArena Vision Elo score | — | 1285 |
FAQ
Is Kimi K2 Instruct or Gemini 3 Flash cheaper?
Kimi K2 Instruct is cheaper on output tokens ($2.65 vs $3.00 per 1M).
Which has the larger context window, Kimi K2 Instruct or Gemini 3 Flash?
Gemini 3 Flash has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.