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A side-by-side comparison of Claude Opus 4.5 and OpenAI: GPT-4o-mini, using the lowest price and highest limits found across every provider that offers each model.
| Claude Opus 4.5 | OpenAI: GPT-4o-mini | |
|---|---|---|
| Providers | 42 | 40 |
| Cheapest input ($/M) | $0.7742 via DaoXE | $0.0232 via DaoXE |
| Cheapest output ($/M) | $3.8711 via DaoXE | $0.0929 via DaoXE |
| Max context | 200K | 128K |
| Max output | 65.5K | 16.4K |
| Released | Nov 1, 2025 | Jan 1, 2024 |
| Open weights | No | No |
| Features | ReasoningToolsStructured outputFilesTemperature | ToolsStructured outputFilesTemperature |
| Input modalities | FileImageText | ImageText |
| Output modalities | Text | Text |