Gemini
Google DeepMind · 15 tracked releases · December 6, 2023 – September 30, 2026
At a glance
| Releases tracked | 15 |
|---|---|
| First tracked | December 6, 2023 — Gemini 1.0 Ultra |
| Latest | September 30, 2026 — Gemini 4 Argon |
| Span | 1,029 days |
| Median gap | 28 days between releases |
| Weights | Proprietary throughout |
| Record quality | 11 of 15 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.
- 2023
- Gemini 1.0 Ultra, Google DeepMind, December 6, 2023Gemini 1.0 Pro, Google DeepMind, December 6, 2023Gemini 1.0 Nano, Google DeepMind, December 6, 2023
- 2024
- Gemini 1.5 Pro, Google DeepMind, February 15, 2024
- Gemini 2.0 Flash, Google DeepMind, December 11, 2024
- 20252
- 2026
- Gemini 3.1 Flash-Lite, Google DeepMind, May 7, 2026Gemini 3.5 Flash, Google DeepMind, May 19, 2026
- Gemini 3.6 Flash, Google DeepMind, July 21, 2026Gemini 3.5 Flash-Lite, Google DeepMind, July 21, 2026
- Gemini 3.7 Flash, Google DeepMind, August 13, 2026
- Gemini 3.8 Flash, Google DeepMind, September 2, 2026Gemini 3.8 Flash Cyber, Google DeepMind, September 2, 2026Gemini 4 Argon, Google DeepMind, September 30, 2026
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.
-
3 released the same day
-
+71 days
-
+300 days
Gemini 2.0 Flashagenticfunction callingstructured output
-
+104 days
Gemini 2.5 Proreasoning
from Gemini 1.5 Pro Context window 2.1M → 1.05Mfirst evidenced: reasoning, function calling, structured outputfirst evidenced: audio in
-
+238 days
-
+170 days
-
+12 days
Gemini 3.5 Flashfrom Gemini 2.0 Flash first evidenced: reasoning
-
+63 days
2 released the same day
Gemini 3.6 Flashfrom Gemini 3.5 Flash first evidenced: coding
Gemini 3.5 Flash-Litefrom Gemini 3.1 Flash-Lite first evidenced: agentic
-
+23 days
-
+28 days
Context window over time
Only releases with a disclosed context window appear — 1 of 15 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.
Across every generation of this family, parameters could not be compared — the values are not recorded on both sides of any step. That is a gap in this dataset, not a statement about the models. See data quality.
Gemini 1.0 Pro → Gemini 1.5 Pro 71 days
- Context window
- 33K → 2.1M
- Capabilities first evidenced
- + video
Not comparable here: modalities (Gemini 1.5 Pro evidences fewer than Gemini 1.0 Pro, which means not evidenced rather than removed).
Gemini 1.5 Pro → Gemini 2.5 Pro 404 days
- Context window
- 2.1M → 1.05M
- Capabilities first evidenced
- + reasoning + function calling + structured output
- Modalities first evidenced
- + audio in
Gemini 2.5 Pro → Gemini 3 Pro 238 days
- Capabilities first evidenced
- + vision + coding + agentic
Not comparable here: modalities (Gemini 3 Pro evidences fewer than Gemini 2.5 Pro, which means not evidenced rather than removed).
Gemini 2.0 Flash → Gemini 3.5 Flash 524 days
- Capabilities first evidenced
- + reasoning
Not comparable here: modalities (Gemini 3.5 Flash evidences fewer than Gemini 2.0 Flash, which means not evidenced rather than removed).
Gemini 3.5 Flash → Gemini 3.6 Flash 63 days
- Capabilities first evidenced
- + coding
Gemini 3.1 Flash-Lite → Gemini 3.5 Flash-Lite 75 days
- Capabilities first evidenced
- + agentic
Gemini 3.6 Flash → Gemini 3.7 Flash 23 days
No change in any field both releases record.
Gemini 3.7 Flash → Gemini 3.8 Flash 20 days
No change in any field both releases record.
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