o4-mini vs GLM-5.3
30-second takeaway
- Same input price ($1.1)
- GLM-5.3 has the larger context: 1M vs 200K tokens
More specs (max output / capabilities)
| max output | 100,000 | 131,072 |
| Reasoning | ✓ Yes | ✓ 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.