| Output $/MTok | $1.00 | $30.00 |
|---|---|---|
| Input $/MTok | $1.00 | $5.00 |
| Cached input $/MTok | — | $0.5000 |
| Context window | 128,000 | 1,050,000 |
| Output cap | 8,000 | 128,000 |
| Modalities | in: text / out: text | in: text, image / out: text |
| Tool use | — | ✓ |
| Structured output | ✓ | ✓ |
| Family | Sonar | GPT-5.5 |
| Knowledge cutoff | — | 2025-12-01 |
| Verified | 2026-07-02 | 2026-07-02 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $19.50 | $30.00 | $30.00 | $17.50 |
|---|---|---|---|---|
| Voice quality | neural | neural | neural | neural |
| Voice cloning | — | — | — | ✓ included |
| Voice count | — | — | 94 | 217 |
| Languages | en, hi | en, es, de, fr, nl, it, ja | en | en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or |
| SSML support | — | — | — | — |
| TTFB | 200ms | — | 37ms | 200ms |
| Output formats | pcm, mp3, wav, ulaw, alaw | wav, mp3, linear16, mulaw, alaw, opus | — | pcm, mp3, wav, ulaw, alaw |
| Verified | 2026-07-02 | 2026-07-02 | 2026-07-02 | 2026-07-02 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ | provider page ↗ |