GPT-4.1 Nano vs Kimi K2
Both models are evenly matched
Arena ELO
Kimi K2
Cheaper
GPT-4.1 Nano
Faster
Kimi K2
Detailed Comparison
| Category | GPT-4.1 Nano | Kimi K2 |
|---|---|---|
| Provider | OpenAI | Moonshot |
| Context Window | 128K | 128K |
| Input Price ($/1M) | $0.1 WIN | $0.55 |
| Output Price ($/1M) | $0.4 WIN | $2.2 |
| Arena ELO | N/A | 1380 WIN |
| Coding | N/A | 65.8% SWE-bench |
| Reasoning | N/A | 60.2% BrowseComp |
| Speed (tokens/sec) | N/A | ~50 t/s WIN |
| Open Source | No | Yes |
Frequently Asked Questions
Which is cheaper, GPT-4.1 Nano or Kimi K2?
GPT-4.1 Nano is approximately 82% cheaper than Kimi K2 per million tokens.
Which is better for coding, GPT-4.1 Nano or Kimi K2?
GPT-4.1 Nano scores N/A on coding benchmarks, while Kimi K2 scores 65.8% SWE-bench.
Which has a larger context window?
GPT-4.1 Nano supports 128K context, while Kimi K2 supports 128K.
Is GPT-4.1 Nano or Kimi K2 open source?
GPT-4.1 Nano is proprietary. Kimi K2 is open source.
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