| Output $/MTok | $1.25 |
|---|---|
| Input $/MTok | $0.20 |
| Cached input $/MTok | $0.0200 |
| Context window | 400,000 |
| Output cap | 128,000 |
| Modalities | in: text, image / out: text |
| Tool use | ✓ |
| Structured output | ✓ |
| Family | GPT-5.4 |
| Knowledge cutoff | 2025-08-31 |
| Verified | 2026-07-19 |
| Source | provider page ↗ |
| $/min | $0.005000 | $0.006000 | $0.002150 |
|---|---|---|---|
| $/min batch | — | — | — |
| Streaming | ✓ | — | ✓ |
| Realtime | ✓ | — | ✓ |
| Languages | en | 99+ | 56+ |
| Diarization | included | unsupported | included |
| TTFW | — | — | — |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $50.00 |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | ✓ included | ✓ included |
| Voice count | — | — |
| Languages | 42+ | 31+ |
| SSML support | ✓ | — |
| TTFB | — | — |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |