Kimi K3 Spot vs GPT-4o
GPT-4o is cheaper on output tokens, while Kimi K3 Spot offers a larger context window. Choose Kimi K3 Spot or GPT-4o based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K3 Spot | GPT-4o |
|---|---|---|
| Provider | Fireworks AI | OpenAI |
| Input / 1M tokens | $2.10 | $2.50 |
| Output / 1M tokens | $10.50 | $10.00 |
| Context window | 1M | 128K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Jul 2026 | May 2024 |
| SWE-bench Verified score | — | 38.8 |
| LMArena (Chatbot Arena) Elo score | — | 1300 |
| LMArena Vision Elo score | — | 1137 |
| GPQA Diamond score | — | 49.2 |
| FrontierMath score | — | 0.3 |
| Epoch Capabilities Index score | — | 129 |
| SWE-bench Multimodal score | — | 30.4 |
FAQ
Is Kimi K3 Spot or GPT-4o cheaper?
GPT-4o is cheaper on output tokens ($10.00 vs $10.50 per 1M).
Which has the larger context window, Kimi K3 Spot or GPT-4o?
Kimi K3 Spot 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.