GLM-5.3-Flash vs Claude Opus 5
GLM-5.3-Flash is cheaper on output tokens. Choose GLM-5.3-Flash or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM-5.3-Flash | Claude Opus 5 |
|---|---|---|
| Provider | Pareto Inference | Abacus |
| Input / 1M tokens | $0.03 | $5.00 |
| Output / 1M tokens | $0.10 | $25.00 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Aug 2026 | Jul 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.