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A side-by-side comparison of Claude Sonnet 4.5 and GPT-5.2, using the lowest price and highest limits found across every provider that offers each model.
| Claude Sonnet 4.5 | GPT-5.2 | |
|---|---|---|
| Providers | 34 | 44 |
| Cheapest input ($/M) | $0.4647 via DaoXE | $0.2711 via DaoXE |
| Cheapest output ($/M) | $2.3236 via DaoXE | $2.1687 via DaoXE |
| Max context | 1M | 512K |
| Max output | 64K | 128K |
| Released | Sep 26, 2025 | Dec 8, 2025 |
| Open weights | No | No |
| Features | ReasoningToolsStructured outputFilesTemperature | ReasoningToolsStructured outputFilesTemperature |
| Input modalities | FileImageText | ImageText |
| Output modalities | Text | Text |