| Output $/MTok | $14.00 | $2.50 | $0.28 |
|---|---|---|---|
| Input $/MTok | $1.75 | $1.25 | $0.14 |
| Cached input $/MTok | $0.1750 | $0.2000 | $0.0028 |
| Context window | 400,000 | 1,000,000 | 1,048,576 |
| Output cap | 128,000 | 1,000,000 | 384,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text / out: text |
| Tool use | ✓ | ✓ | ✓ |
| Structured output | ✓ | ✓ | ✓ |
| Family | Codex | Grok 4 | DeepSeek R1 |
| Knowledge cutoff | 2025-08-31 | — | — |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $30.00 | $15.00 |
|---|---|---|---|
| Voice quality | neural | neural | neural |
| Voice cloning | ✓ included | — | — |
| Voice count | — | 94 | — |
| Languages | 31+ | en | en |
| SSML support | — | — | — |
| TTFB | — | 37ms | — |
| Output formats | — | — | — |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |