| Output $/MTok | $30.00 | $8.00 | $60.00 |
|---|---|---|---|
| Input $/MTok | $5.00 | $2.00 | $15.00 |
| Cached input $/MTok | $0.5000 | $0.5000 | $7.5000 |
| Context window | 1,050,000 | 200,000 | 200,000 |
| Output cap | 128,000 | 100,000 | 100,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ | ✓ |
| Structured output | ✓ | ✓ | ✓ |
| Family | GPT-5.5 | o-series | o-series |
| Knowledge cutoff | 2025-12-01 | 2024-06-01 | 2023-10-01 |
| Verified | 2026-07-02 | 2026-07-02 | 2026-07-02 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $17.50 | $50.00 |
|---|---|---|---|
| Voice quality | neural | neural | neural |
| Voice cloning | ✓ included | ✓ included | ✓ included |
| Voice count | — | 217 | — |
| Languages | en, fr, de, es, pt, zh, ja, ko | en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or | English |
| SSML support | — | — | — |
| TTFB | 90ms | 200ms | 75ms |
| Output formats | — | pcm, mp3, wav, ulaw, alaw | — |
| Verified | 2026-07-02 | 2026-07-02 | 2026-07-02 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |