Model comparison
GPT-5.4 vs Gemini 2.5 Flash
OpenAI
GPT-5.4
OpenAI's flagship — broadest modality and ecosystem coverage.
Gemini 2.5 Flash
Cheap multimodal at million-token scale.
Specs
| Metric | GPT-5.4 | Gemini 2.5 Flash |
|---|---|---|
| Context window | 1.1M tokens↑ | 1.0M tokens |
| Input $/1M tokens | $2.50 | $0.300↑ |
| Output $/1M tokens | $15.00 | $2.50↑ |
| Modalities | Text · Image · File | File · Image · Text · Audio · Video |
| Open weights | No | No |
Key differences
- —GPT-5.4 offers 1.1M context; Gemini 2.5 Flash offers 1.0M.
- —Input pricing: GPT-5.4 at $2.50/1M vs Gemini 2.5 Flash at $0.300/1M.