Claude Opus 4.5 (latest) vs GLM-5.3
30-second takeaway
- GLM-5.3 has the cheaper input: $1.1 vs $5 (per 1M tokens, 78% less)
- GLM-5.3 has the larger context: 1M vs 200K tokens
| Claude Opus 4.5 (latest) Anthropic | GLM-5.3 Alibaba (China) | |
|---|---|---|
| Input | $5 | $1.1 |
| Output | $25 | $3.851 |
| Context | 200K | 1M |
More specs (max output / capabilities)
| max output | 64,000 | 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.