Kimi K2 Thinking Turbo vs GPT-4.1
Both have similar output pricing, while GPT-4.1 offers a larger context window. Choose Kimi K2 Thinking Turbo or GPT-4.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2 Thinking Turbo | GPT-4.1 |
|---|---|---|
| Provider | Moonshot AI | OpenAI |
| Input / 1M tokens | $1.15 | $2.00 |
| Output / 1M tokens | $8.00 | $8.00 |
| Context window | 262K | 1M |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Nov 2025 | Apr 2025 |
| LMArena (Chatbot Arena) Elo score | 1414 | 1383 |
| LMArena WebDev Elo score | 1322 | — |
| GPQA Diamond score | 84.2 | 66.9 |
| SWE-bench Verified score | — | 39.6 |
| Aider Polyglot score | — | 52.4 |
| SWE-bench Multimodal score | — | 31.1 |
| LMArena Vision Elo score | — | 1211 |
| FrontierMath score | — | 5.5 |
| Epoch Capabilities Index score | — | 137 |
FAQ
Is Kimi K2 Thinking Turbo or GPT-4.1 cheaper?
Kimi K2 Thinking Turbo and GPT-4.1 have comparable output pricing.
Which has the larger context window, Kimi K2 Thinking Turbo or GPT-4.1?
GPT-4.1 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.