| Output $/MTok | $2.50 | $1.00 |
|---|---|---|
| Input $/MTok | $1.25 | $1.00 |
| Cached input $/MTok | — | — |
| Context window | 1,000,000 | 128,000 |
| Output cap | 1,000,000 | 8,000 |
| Modalities | in: text, image / out: text | in: text / out: text |
| Tool use | ✓ | — |
| Structured output | ✓ | ✓ |
| Family | Grok 4 | Sonar |
| Knowledge cutoff | — | — |
| Verified | 2026-07-02 | 2026-07-02 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $17.50 | $50.00 | $30.00 |
|---|---|---|---|---|
| Voice quality | neural | neural | neural | neural |
| Voice cloning | ✓ included | ✓ included | ✓ included | — |
| Voice count | — | 217 | — | 94 |
| Languages | English | en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or | en, fr, de, es, pt, zh, ja, ko | en |
| SSML support | — | — | — | — |
| TTFB | 75ms | 200ms | 90ms | 37ms |
| Output formats | — | 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 ↗ |