Gemini 3.1 Pro vs Gemini 3.8 Flash
aka Gemini 3.1 Pro (Preview) vs Gemini Flash 3.8
Posts
1Same prompt, separate runs
1Not a controlled comparison: prompts, tools and time differ.
About this matchup
Gemini 3.1 Pro vs Gemini 3.8 Flash in real side-by-side tests: 1 post from X where both got the same prompt. Judge coding ability from the actual outputs.
Gemini 3.1 Pro vs Gemini 3.8 Flash: which is better for coding?
Which is better for coding, Gemini 3.1 Pro or Gemini 3.8 Flash?
None of the 1 post here names one of the two as the better result, so judge the outputs above for the work you care about.
What have Gemini 3.1 Pro and Gemini 3.8 Flash been tested on?
The most-viewed of the 1 post: same 3D game challenge, three Gemini models (@subh11_). Categories: Games, 3D & Shaders.
How many side-by-side tests compare Gemini 3.1 Pro and Gemini 3.8 Flash?
1 post from X, posted Nov 7, 2026, by @subh11_. Every one is listed above with its video and a link to its post on X.
Summary
Gemini 3.1 Pro and Gemini 3.8 Flash appear together in 1 post on X: same 3D game challenge, three Gemini models (@subh11_). It is part of larger lineups with other models. None of these posts report cost or time per model.
What each post reports
| Post | Model | Time | Cost | Tokens | Post |
|---|---|---|---|---|---|
| Same 3D game challenge, three Gemini models@subh11_ | Gemini 3.1 Pro | — | — | — | X post |
| Same 3D game challenge, three Gemini models@subh11_ | Gemini 3.8 Flash | — | — | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.


