| Output $/MTok | $15.00 | $10.00 | $10.00 | $0.28 |
|---|---|---|---|---|
| Input $/MTok | $2.50 | $1.25 | $2.50 | $0.14 |
| Cached input $/MTok | $0.2500 | $0.1250 | $1.2500 | $0.0028 |
| Context window | 1,050,000 | 400,000 | 128,000 | 1,048,576 |
| Output cap | 128,000 | 128,000 | 16,384 | 384,000 |
| Modalities | in: text, image / out: text | in: text, image / out: text | in: text, image / out: text | in: text / out: text |
| Tool use | ✓ | ✓ | ✓ | ✓ |
| Structured output | ✓ | ✓ | ✓ | ✓ |
| Family | GPT-5.4 | GPT-5 | GPT-4o | DeepSeek V3 |
| Knowledge cutoff | 2025-08-31 | 2024-09-30 | 2023-10-01 | — |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | 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 ↗ |