# DeepSeek R1 0528 release · 2025-05-28 · snapshot 2026-10-26

Creator: DeepSeek · 1 effort levels

| Effort level | Input modalities | Intelligence | Total cost | E2E | On the frontier today | ID |
|---|---|---|---|---|---|---|
| DeepSeek R1 0528 (May '25) | Text | 13.10 | - | 72.8s | no | `deepseek-r1` |

Open weights · on the open-weights frontier today: 0 of 1


> Metrics snapshot: 2026-10-26T09:34:16Z. Intelligence index version: unknown. Release timeline, frontier age, release impact and shakeup cards are reconstructions using one selected snapshot's metrics, not a record of what was known at release. Scores, benchmark cost and derived value may change when the index methodology changes. Source documentation advertises v4.3.2; API correspondence is unverified.