GPT-4o vs Kimi K2
Kimi K2 leads in 3 of 8 categories
Arena ELO
Kimi K2
Cheaper
Kimi K2
Faster
GPT-4o
Detailed Comparison
| Category | GPT-4o | Kimi K2 |
|---|---|---|
| Provider | OpenAI | Moonshot |
| Context Window | 128K | 128K |
| Input Price ($/1M) | $2.5 | $0.55 WIN |
| Output Price ($/1M) | $10 | $2.2 WIN |
| Arena ELO | 1340 | 1380 WIN |
| Coding | 30.8% SWE-bench | 65.8% SWE-bench |
| Reasoning | unknown | 60.2% BrowseComp |
| Speed (tokens/sec) | ~100 t/s WIN | ~50 t/s |
| Open Source | No | Yes |
Frequently Asked Questions
Which is cheaper, GPT-4o or Kimi K2?
Kimi K2 is approximately 78% cheaper than GPT-4o per million tokens.
Which is better for coding, GPT-4o or Kimi K2?
GPT-4o scores 30.8% SWE-bench on coding benchmarks, while Kimi K2 scores 65.8% SWE-bench.
Which has a larger context window?
GPT-4o supports 128K context, while Kimi K2 supports 128K.
Is GPT-4o or Kimi K2 open source?
GPT-4o is proprietary. Kimi K2 is open source.
Which ranks higher on the Chatbot Arena leaderboard?
Kimi K2 ranks higher with ELO 1380 vs 1340.
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