OpenAI: GPT-5.1 Chat vs OpenAI: GPT-5.4 Mini
Side-by-side model comparison based on OpenRouter API data.
| Spec | OpenAI: GPT-5.1 Chat | OpenAI: GPT-5.4 Mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Length | 128K | 400K |
| Max Output | 16K | 128K |
| Input Price/1M | $1.25 | $0.75 |
| Output Price/1M | $10 | $4.50 |
| Cache Read/1M | $0.13 | $0.07 |
| Cache Write/1M | Free | Free |
| Input Modalities | File + Image + Text | File + Image + Text |
| Output Modalities | Text | Text |
| Tokenizer | GPT | GPT |
| Moderated | Yes | Yes |