Kimi K2 vs GPT-5
Kimi K2 is cheaper on output tokens, while GPT-5 offers a larger context window. Choose Kimi K2 or GPT-5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2 | GPT-5 |
|---|---|---|
| Provider | FastRouter | FastRouter |
| Input / 1M tokens | $0.55 | $1.25 |
| Output / 1M tokens | $2.20 | $10.00 |
| Context window | 131K | 400K |
| Parameters | 1T | — |
| Open weights | Yes | No |
| Released | Jul 2025 | Aug 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.