Kimi K2 Thinking vs OpenAI GPT-5 Mini
Both have similar output pricing, while OpenAI GPT-5 Mini offers a larger context window. Choose Kimi K2 Thinking or OpenAI GPT-5 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2 Thinking | OpenAI GPT-5 Mini |
|---|---|---|
| Provider | Helicone | Helicone |
| Input / 1M tokens | $0.48 | $0.25 |
| Output / 1M tokens | $2.00 | $2.00 |
| Context window | 256K | 400K |
| Parameters | 1T | — |
| Open weights | No | No |
| Released | Nov 2025 | Jan 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.