| Output $/MTok | $4.50 | $2.50 |
|---|---|---|
| Input $/MTok | $0.75 | $1.25 |
| Cached input $/MTok | $0.0750 | $0.2000 |
| Context window | 400,000 | 1,000,000 |
| Output cap | 128,000 | 1,000,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | GPT-5.4 | Grok 4 |
| Knowledge cutoff | 2025-08-31 | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.012500 | $0.002150 |
|---|---|---|
| $/min batch | $0.010170 | — |
| Streaming | ✓ | ✓ |
| Realtime | ✓ | ✓ |
| Languages | 100+ | 56+ |
| Diarization | included | included |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $30.00 | — |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | — | ✓ included |
| Voice count | 94 | — |
| Languages | en | en |
| SSML support | — | — |
| TTFB | 37ms | — |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |