gpt-4-gizmo-* vs gpt-5-nano
| OpenAI gpt-4-gizmo-* | OpenAI gpt-5-nano | |
|---|---|---|
| Vendor | OpenAI | OpenAI |
| Context window | — | 400,000 |
| Max output | — | 128,000 |
| Reasoning | No | Yes |
| Tool calling | No | Yes |
| File input | No | Yes |
| Input | text, image | text, image |
| Output | text | text |
| Released | — | 2025-08-07 |