Claude Opus 5 vs DeepSeek V4 Pro
Facts only. This page does not pick a winner. For a picked winner, see the use case comparison on Tools.
| Claude Opus 5 | DeepSeek V4 Pro | |
|---|---|---|
| API model IDs | claude-opus-5 | deepseek-v4-pro, deepseek-v4-pro-0813 |
| Context window | 1,000,000 | 1,000,000 |
| Lifecycle | active | active |
| License | proprietary | open-weights |
| Trains on API data | No | Yes |
| Zero data retention | on-request | no |
| Input per 1M tokens | $5 (verified 2026-09-08) | $1.32 (verified 2026-09-08) |