GLM 5.2 (Free) vs Claude Opus 4.1
GLM 5.2 (Free) is cheaper on output tokens, while GLM 5.2 (Free) offers a larger context window. Choose GLM 5.2 (Free) or Claude Opus 4.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM 5.2 (Free) | Claude Opus 4.1 |
|---|---|---|
| Provider | ZenMux | ZenMux |
| Input / 1M tokens | $0.00 | $15.00 |
| Output / 1M tokens | $0.00 | $75.00 |
| Context window | 1M | 200K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Jun 2026 | Aug 2025 |
FAQ
Is GLM 5.2 (Free) or Claude Opus 4.1 cheaper?
GLM 5.2 (Free) is cheaper on output tokens ($0.00 vs $75.00 per 1M).
Which has the larger context window, GLM 5.2 (Free) or Claude Opus 4.1?
GLM 5.2 (Free) 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.