DeepSeek V4.1 Flash weights published under MIT
Oct 6, 2026
V4.1 Flash (released 10 Sep 2026) got its MIT-licensed weights published on ModelScope on 6 Oct 2026 — the full open-weight playbook, again.
Source: DeepSeek changelog, via abhs.in
AI Lab
DeepSeek
Efficient open-weight frontier models at disruptive prices
| Founded | 2023 |
| Headquarters | Hangzhou, China |
| Founders | Liang Wenfeng |
| Focus | Efficient open-weight frontier models at disruptive prices |
| Official site | https://www.deepseek.com |
| Data verified | Oct 14, 2026 |
73.0Club Score (#4)
DeepSeek V4.1 FlashBest model (75)
2Models tracked (squad)
DeepSeek V4.1 FlashCheapest capable ($0.52/1M blended)
DeepSeek V4.1 FlashLatest release (Sep 10, 2026)
100%Open-weight share (Fully open)
Models & league positions
| Model | Score | Overall | Coding | Reasoning | Value | Open-Wt | Context | $/1M in | $/1M out | Released |
|---|---|---|---|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash | 75 | #10 | — | #11 | #3 | #1 | 1M | $0.30 | $1.20 | Sep 10, 2026 |
| DeepSeek V4 Pro (0813) | 63 | #19 | #8 | #14 | #10 | #3 | 1M | $1.32 | $3.96 | Apr 24, 2026 |
Latest releases
- Oct 6, 2026: DeepSeek — DeepSeek V4.1 Flash weights published under MIT — V4.1 Flash (released 10 Sep 2026) got its MIT-licensed weights published on ModelScope on 6 Oct 2026 — the full open-weight playbook, again. Research
- Sep 10, 2026: DeepSeek V4.1 Flash — Released — 1M context, $0.30/$1.20 per 1M, League Score 75. Model release
- Apr 24, 2026: DeepSeek V4 Pro (0813) — Released — 1M context, $1.32/$3.96 per 1M, League Score 63. Model release
Research highlights
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