Tier A: Strong with clear operating rules.
Gemini 3.5 Flash
Fast, cheap, and surprisingly good for smaller UI builds.
Our take
Gemini 3.5 Flash is ranked higher than Gemini 3.1 Pro because speed and cost make it useful for one-shot UI and mobile-friendly layouts.
Best for
- Small UI generation
- Mobile-friendly layouts
- Cheap fast iterations
Watch out
- Quota and regional availability can be inconsistent
- Do not overload it with intense projects
Why it is ranked here
- The source video says it can one-shot UI when the task is not too intense.
- Its speed and cost are the point, similar to why Sonnet is useful as a workhorse.
- The main operational risk is rate limits and availability.
Video evidence
NEW AI Model Tier List for Vibe Coding!
Takeaway: Use Gemini 3.5 Flash for fast UI generation, not oversized builds.
The source video says it is surprisingly capable for UI and mobile layouts but depends on quota.
Open source notes
