Gemini 3.5 Pro — cancelled
by Google / Google DeepMind
Announced, repeatedly delayed, and ultimately cancelled in August 2026. Recorded because the cancellation itself is the notable event.
Part of the Gemini 3 series.
Timeline
| Date | Event |
|---|---|
| 2026-07-15 | Delayed again; 3.6 Flash floated as arriving first |
| 2026-07-23 | Leaked, “with a twist” |
| 2026-08-03 | Qwen 3.8 Max ships open-weights, sharpening the comparison |
| 2026-08-04 | Noted that Qwen went open-weight “while Gemini 3.5 Pro still isn’t here” |
| 2026-08-10 | Cancelled |
Notes
The Pro tier of Gemini 3.5 never shipped. Coverage tracks a slow slide from leak excitement to
open criticism as the Flash tier iterated past it — 3.5 Flash, then 3.6 Flash, then 3.7 Flash all
released while Pro slipped. Its cancellation coincided with open-weight models (Qwen 3.8 Max)
publishing weights for comparable capability, which is the framing most sources adopted.
Kept as a note rather than omitted: a cancelled flagship is a real part of the series history,
and its absence explains why the Gemini 3 line is Flash-dominated.
Related
- Gemini 3 series · 3.5 Flash · qwen