| Output $/MTok | $4.50 | $8.00 |
|---|---|---|
| Input $/MTok | $0.75 | $2.00 |
| Cached input $/MTok | $0.0750 | $0.5000 |
| Context window | 400,000 | 1,047,576 |
| Output cap | 128,000 | 32,768 |
| Modalities | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | GPT-5.4 | GPT-4.1 |
| Knowledge cutoff | 2025-08-31 | 2024-06-01 |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.002150 | $0.003000 |
|---|---|---|
| $/min batch | — | $0.001500 |
| Streaming | — | ✓ |
| Realtime | — | ✓ |
| Languages | 68+ | 99+ |
| Diarization | included | unsupported |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $50.00 | $30.00 |
|---|---|---|
| Voice quality | neural | neural |
| Voice cloning | ✓ included | — |
| Voice count | — | 94 |
| Languages | 31+ | en |
| SSML support | — | — |
| TTFB | — | 37ms |
| Output formats | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |