DeepSeek DeepSeek V4 Pro | OpenAI GPT-5.5 | |
|---|---|---|
| Output $/MTok | $0.87 | $30.00 |
| Input $/MTok | $0.43 | $5.00 |
| Cached input $/MTok | $0.0036 | $0.5000 |
| Context window | 1,048,576 | 1,050,000 |
| Output cap | 384,000 | 128,000 |
| Modalities | in: text / out: text | in: text, image / out: text |
| Tool use | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Family | DeepSeek V4 | GPT-5.5 |
| Knowledge cutoff | — | 2025-12-01 |
| Verified | 2026-07-27 | 2026-07-27 |
| Source | provider page ↗ | provider page ↗ |