Kimi K2 Thinking vs Claude Sonnet 4.5
Kimi K2 Thinking is cheaper on output tokens, while Kimi K2 Thinking offers a larger context window. Choose Kimi K2 Thinking or Claude Sonnet 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2 Thinking | Claude Sonnet 4.5 |
|---|---|---|
| Provider | Merge Gateway | Merge Gateway |
| Input / 1M tokens | $0.60 | $3.00 |
| Output / 1M tokens | $2.50 | $15.00 |
| Context window | 262K | 200K |
| Parameters | 1T | — |
| Open weights | Yes | No |
| Released | Nov 2025 | Sep 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.