GLM-5.1 vs GPT-4o mini
GPT-4o mini is cheaper on output tokens, while GLM-5.1 offers a larger context window. Choose GLM-5.1 or GPT-4o mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM-5.1 | GPT-4o mini |
|---|---|---|
| Provider | Merge Gateway | Merge Gateway |
| Input / 1M tokens | $1.40 | $0.15 |
| Output / 1M tokens | $4.40 | $0.60 |
| Context window | 200K | 128K |
| Parameters | 754B | — |
| Open weights | Yes | No |
| Released | Apr 2026 | Jul 2024 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.