| Output $/MTok | $8.00 | $15.00 | $30.00 | $60.00 |
|---|---|---|---|---|
| Input $/MTok | $2.00 | $2.50 | $5.00 | $15.00 |
| Cached input $/MTok | $0.5000 | $0.2500 | $0.5000 | $7.5000 |
| Context window | 200,000 | 1,050,000 | 1,050,000 | 200,000 |
| Output cap | 100,000 | 128,000 | 128,000 | 100,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ | ✓ | ✓ |
| Structured output | ✓ | ✓ | ✓ | ✓ |
| Family | o-series | GPT-5.4 | GPT-5.5 | o-series |
| Knowledge cutoff | 2024-06-01 | 2025-08-31 | 2025-12-01 | 2023-10-01 |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $22.00 |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | ✓ included | — |
| Voice count | — | 30 |
| Languages | en, fr, de, es, pt, zh, ja, hi, ko | en-US, zh-CN, de-DE, es-ES, fr-FR, ja-JP |
| SSML support | — | — |
| TTFB | 40ms | — |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |