# DeepSeek V4.1 Flash release · 2026-09-10 · snapshot 2026-10-25

Creator: DeepSeek · 2 effort levels

| Effort level | Input modalities | Intelligence | Total cost | E2E | On the frontier today | ID |
|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash (Non-reasoning) | Text, Image | 24.70 | $239 | 2.74s | no | `deepseek-v4-1-flash-non-reasoning` |
| DeepSeek V4.1 Flash (Max) | Text, Image | 39.50 | $672 | 15.0s | no | `deepseek-v4-1-flash` |

Open weights · on the open-weights frontier today: 0 of 2

## Launch day (2026-09-10)

- Reached the frontier: 0 of 2
- Reached the open-weights frontier: 0 of 2
- Impact (intelligence × log-cost hypervolume gained): 0
- Rank: did not move the frontier; 46 releases this past year did
- DeepSeek V4.1 Flash (Non-reasoning) missed: 0.3 points below GPT-5.6 Luna (Medium) at 5.39× its cost
- DeepSeek V4.1 Flash (Max) missed: 2.3 points below GLM-5.3-Flash at 2.20× its cost


> Metrics snapshot: 2026-10-25T21:35:50Z. 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.