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A side-by-side comparison of Claude Opus 5 and o3, using the lowest price and highest limits found across every provider that offers each model.
| Claude Opus 5 | o3 | |
|---|---|---|
| Providers | 60 | 32 |
| Cheapest input ($/M) | $0.7745 via DaoXE | $0.27 via Api.Airforce |
| Cheapest output ($/M) | $1.5 via KiosAPI | $1.05 via Api.Airforce |
| Max context | 1M | 200K |
| Max output | 1M | 100K |
| Released | Jul 23, 2026 | Apr 8, 2025 |
| Open weights | No | No |
| Features | ReasoningToolsStructured outputFiles | ReasoningToolsStructured outputFiles |
| Input modalities | FileImageText | FileImageText |
| Output modalities | Text | Text |