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A side-by-side comparison of GLM-5.3 and OpenAI: GPT-5.3-Codex, using the lowest price and highest limits found across every provider that offers each model.
| GLM-5.3 | OpenAI: GPT-5.3-Codex | |
|---|---|---|
| Providers | 86 | 41 |
| Cheapest input ($/M) | $0 via ElectronHub | $0.1504 via QiHang AI |
| Cheapest output ($/M) | $0 via ElectronHub | $1.2031 via QiHang AI |
| Max context | 1M | 512K |
| Max output | 1M | 128K |
| Released | Aug 13, 2026 | Feb 5, 2026 |
| Open weights | Yes | No |
| Features | ReasoningToolsStructured outputTemperature | ReasoningToolsStructured outputFiles |
| Input modalities | Text | ImageText |
| Output modalities | Text | Text |