| Output $/MTok | $6.00 | $15.00 | $8.00 | $1.00 | $30.00 |
|---|---|---|---|---|---|
| Input $/MTok | $2.00 | $2.50 | $2.00 | $1.00 | $5.00 |
| Cached input $/MTok | $0.3000 | $0.2500 | $0.5000 | — | $0.5000 |
| Context window | 500,000 | 1,050,000 | 200,000 | 128,000 | 1,050,000 |
| Output cap | 500,000 | 128,000 | 100,000 | 8,000 | 128,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text | in: text / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ | ✓ | — | ✓ |
| Structured output | ✓ | ✓ | ✓ | ✓ | ✓ |
| Family | Grok 4 | GPT-5.4 | o-series | Sonar | GPT-5.5 |
| Knowledge cutoff | 2026-02-01 | 2025-08-31 | 2024-06-01 | — | 2025-12-01 |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $4.00 |
|---|---|
| Voice quality | neural |
| Voice cloning | — |
| Voice count | — |
| Languages | 40+ |
| SSML support | ✓ |
| TTFB | — |
| Output formats | — |
| Verified | 2026-07-19 |
| Source | provider page ↗ |