| Output $/MTok | $10.00 | $6.00 | $60.00 |
|---|---|---|---|
| Input $/MTok | $2.50 | $2.00 | $15.00 |
| Cached input $/MTok | $1.2500 | $0.3000 | $7.5000 |
| Context window | 128,000 | 500,000 | 200,000 |
| Output cap | 16,384 | 500,000 | 100,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ | ✓ |
| Structured output | ✓ | ✓ | ✓ |
| Family | GPT-4o | Grok 4 | o-series |
| Knowledge cutoff | 2023-10-01 | 2026-02-01 | 2023-10-01 |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $30.00 | $15.00 | $17.50 |
|---|---|---|---|
| Voice quality | neural | neural | neural |
| Voice cloning | — | — | ✓ included |
| Voice count | — | — | 217 |
| Languages | en, es, de, fr, nl, it, ja | en | en, hi, es, mr, kn, ta, bn, gu, te, ml, pa, or |
| SSML support | — | — | — |
| TTFB | — | — | 200ms |
| Output formats | wav, mp3, linear16, mulaw, alaw, opus | — | pcm, mp3, wav, ulaw, alaw |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |