| Output $/MTok | $8.00 | $14.00 |
|---|---|---|
| Input $/MTok | $2.00 | $1.75 |
| Cached input $/MTok | $0.5000 | $0.1750 |
| Context window | 200,000 | 400,000 |
| Output cap | 100,000 | 128,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | o-series | Codex |
| Knowledge cutoff | 2024-06-01 | 2025-08-31 |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/min | $0.004800 | $0.002150 |
|---|---|---|
| $/min batch | $0.004300 | — |
| Streaming | ✓ | — |
| Realtime | ✓ | — |
| Languages | en, en-US, en-AU, en-CA, en-GB, en-IE, en-IN, en-NZ | 68+ |
| Diarization | extra-cost | included |
| 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 ↗ |