| Output $/MTok | $1.50 | $1.00 | $10.00 | $30.00 |
|---|---|---|---|---|
| Input $/MTok | $0.50 | $1.00 | $2.50 | $5.00 |
| Cached input $/MTok | — | — | $1.2500 | $0.5000 |
| Context window | 128,000 | 128,000 | 128,000 | 1,050,000 |
| Output cap | 4,000 | 8,000 | 16,384 | 128,000 |
| Modalities | in: text / out: text | in: text / out: text | in: text, image / out: text | in: text, image / out: text |
| Tool use | — | — | ✓ | ✓ |
| Structured output | — | ✓ | ✓ | ✓ |
| Family | Aya Expanse | Sonar | GPT-4o | GPT-5.5 |
| Knowledge cutoff | — | — | 2023-10-01 | 2025-12-01 |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ | provider page ↗ |
| $/1M chars | $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 ↗ |