| Output $/MTok | $15.00 | $15.00 |
|---|---|---|
| Input $/MTok | $2.50 | $3.00 |
| Cached input $/MTok | $0.2500 | — |
| Context window | 1,050,000 | 200,000 |
| Output cap | 128,000 | 8,000 |
| Modalities | in: text, image / out: text | in: text / out: text |
| Tool use | ✓ | — |
| Structured output | ✓ | ✓ |
| Family | GPT-5.4 | Sonar |
| Knowledge cutoff | 2025-08-31 | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.004800 | $0.003300 |
|---|---|---|
| $/min batch | $0.004300 | — |
| Streaming | ✓ | — |
| Realtime | ✓ | — |
| Languages | en, en-US, en-AU, en-CA, en-GB, en-IE, en-IN, en-NZ | en |
| 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 ↗ |