| Output $/MTok | $30.00 | $1.00 |
|---|---|---|
| Input $/MTok | $5.00 | $1.00 |
| Cached input $/MTok | $0.5000 | — |
| Context window | 1,050,000 | 128,000 |
| Output cap | 128,000 | 8,000 |
| Modalities | in: text, image / out: text | in: text / out: text |
| Tool use | ✓ | — |
| Structured output | ✓ | ✓ |
| Family | GPT-5.5 | Sonar |
| Knowledge cutoff | 2025-12-01 | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.003000 | $0.003300 |
|---|---|---|
| $/min batch | $0.001500 | — |
| Streaming | ✓ | — |
| Realtime | ✓ | — |
| Languages | 99+ | en |
| Diarization | unsupported | included |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $19.50 |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | ✓ included | — |
| Voice count | — | — |
| Languages | en, fr, de, es, pt, zh, ja, ko | en, hi, mr, ta, ml, te, kn, pa, bn, or, gu, ar, zh, id, ja, ko, ms, tr, vi, de, es, fr, it, pt, ru, el, fi, no, pl |
| SSML support | — | — |
| TTFB | 90ms | 200ms |
| Output formats | — | pcm, mp3, wav, ulaw, alaw |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |