GPT-5.2 Codex vs GLM-4.5
GLM-4.5 is cheaper on output tokens, while GPT-5.2 Codex offers a larger context window. Choose GPT-5.2 Codex or GLM-4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.2 Codex | GLM-4.5 |
|---|---|---|
| Provider | Impossibl | Impossibl |
| Input / 1M tokens | $1.75 | $0.60 |
| Output / 1M tokens | $14.00 | $2.20 |
| Context window | 400K | 131K |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Dec 2025 | Jul 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.