OpenAI: GPT-5.1-Codex-Mini vs OpenAI: GPT-5.4 Pro
Side-by-side model comparison based on OpenRouter API data.
| Spec | OpenAI: GPT-5.1-Codex-Mini | OpenAI: GPT-5.4 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Length | 400K | 1.1M |
| Max Output | 100K | 128K |
| Input Price/1M | $0.25 | $30 |
| Output Price/1M | $2.00 | $180 |
| Cache Read/1M | $0.02 | Free |
| Cache Write/1M | Free | Free |
| Input Modalities | Image + Text | Text + Image + File |
| Output Modalities | Text | Text |
| Tokenizer | GPT | GPT |
| Moderated | Yes | Yes |