DeepSeek
DeepSeek · 7 tracked releases · May 6, 2024 – September 10, 2026
At a glance
| Releases tracked | 7 |
|---|---|
| First tracked | May 6, 2024 — DeepSeek-V2 |
| Latest | September 10, 2026 — DeepSeek-V4.1-Flash |
| Span | 857 days |
| Median gap | 139 days between releases |
| Weights | Open throughout |
| Record quality | 6 of 7 verified · how this is judged |
Release cadence
One tile per tracked release, placed in the month it shipped, so the pauses in this line are the pauses in the data. Years with nothing tracked keep their row.
- 2024
- DeepSeek-V2, DeepSeek, May 6, 2024
- DeepSeek-V2.5, DeepSeek, September 5, 2024
- DeepSeek-V3, DeepSeek, December 26, 2024
- 20252
- 20262
Lineage
Ordered by announcement date, and spaced by the gap between releases, so a quiet year looks like one. Lineage is not inferred from version numbers — labs do not number consistently, so the dates decide the order.
-
DeepSeek-V2
coding
-
+122 days
DeepSeek-V2.5function callingstructured output
from DeepSeek-V2 first evidenced: function calling, structured output
-
+112 days
DeepSeek-V3from DeepSeek-V2.5 Parameters 236B → 671B
-
+25 days
DeepSeek-R1reasoning
-
+213 days
DeepSeek-V3.1agentictool use
from DeepSeek-V3 Licence DeepSeek License Agreement 1.0 → MITfirst evidenced: agentic, function calling, reasoning, tool use
-
+246 days
-
+139 days
DeepSeek-V4.1-Flashfrom DeepSeek V4 Flash first evidenced: image in
Context window over time
Only releases with a disclosed context window appear — 2 of 7 are not shown.
What changed
Generation to generation, from evidenced values only. A field is compared only where both releases record it — otherwise it is called out as not comparable, so a research gap never reads as a change the lab made.
DeepSeek-V2 → DeepSeek-V2.5 122 days
- Capabilities first evidenced
- + function calling + structured output
Not comparable here: context window (not disclosed for both releases).
DeepSeek-V2.5 → DeepSeek-V3 112 days
- Parameters
- 236B → 671B
Not comparable here: context window (not disclosed for both releases).
DeepSeek-V3 → DeepSeek-V3.1 238 days
- Licence
- DeepSeek License Agreement 1.0 → MIT
- Capabilities first evidenced
- + agentic + function calling + reasoning + tool use
DeepSeek V4 Flash → DeepSeek-V4.1-Flash 139 days
- Modalities first evidenced
- + image in
Not comparable here: context window (not disclosed for both releases); parameters (not disclosed for both releases).
Compare the two most recent side by side →
All releases from DeepSeek →