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A side-by-side comparison of DeepSeek V4 Flash and GPT-5.4 Mini, using the lowest price and highest limits found across every provider that offers each model.
| DeepSeek V4 Flash | GPT-5.4 Mini | |
|---|---|---|
| Providers | 53 | 48 |
| Cheapest input ($/M) | $0 via LLMTR | $0.1128 via QiHang AI |
| Cheapest output ($/M) | $0 via LLMTR | $0.6768 via QiHang AI |
| Max context | 1.1M | 1.1M |
| Max output | 1M | 128K |
| Released | Apr 22, 2026 | Mar 12, 2026 |
| Open weights | Yes | No |
| Features | ReasoningToolsStructured outputTemperature | ReasoningToolsStructured outputFilesTemperature |
| Input modalities | Text | ImageText |
| Output modalities | Text | Text |