GPT-4o vs Kimi K3
30-second takeaway
- GPT-4o has the cheaper input: $2.5 vs $3 (per 1M tokens, 17% less)
- Kimi K3 has the larger context: 1.049M vs 128K tokens
More specs (max output / capabilities)
| max output | 16,384 | 1,048,576 |
| Reasoning | — No | ✓ Yes |
| Tool calls | ✓ Yes | ✓ Yes |
| Open weights | — No | ✓ Yes |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.