| Output $/MTok | $60.00 | $4.50 |
|---|---|---|
| Input $/MTok | $15.00 | $0.75 |
| Cached input $/MTok | $7.5000 | $0.0750 |
| Context window | 200,000 | 400,000 |
| Output cap | 100,000 | 128,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | o-series | GPT-5.4 |
| Knowledge cutoff | 2023-10-01 | 2025-08-31 |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.003300 | $0.004800 |
|---|---|---|
| $/min batch | — | $0.004300 |
| Streaming | — | ✓ |
| Realtime | — | ✓ |
| Languages | en | en, en-US, en-AU, en-CA, en-GB, en-IE, en-IN, en-NZ |
| Diarization | included | extra-cost |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $30.00 | $50.00 |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | — | ✓ included |
| Voice count | 94 | — |
| Languages | en | en, fr, de, es, pt, zh, ja, hi, ko |
| SSML support | — | — |
| TTFB | 37ms | 40ms |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |