| Output $/MTok | $6.00 | $30.00 |
|---|---|---|
| Input $/MTok | $2.00 | $5.00 |
| Cached input $/MTok | $0.3000 | $0.5000 |
| Context window | 500,000 | 1,050,000 |
| Output cap | 500,000 | 128,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | Grok 4 | GPT-5.5 |
| Knowledge cutoff | 2026-02-01 | 2025-12-01 |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.005800 | $0.002150 |
|---|---|---|
| $/min batch | $0.009200 | — |
| Streaming | ✓ | ✓ |
| Realtime | ✓ | ✓ |
| Languages | 61+ | 56+ |
| Diarization | extra-cost | included |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | — |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | ✓ included | ✓ included |
| Voice count | — | — |
| Languages | 31+ | en |
| SSML support | — | — |
| TTFB | — | — |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |