Tier B: Specialist or second-choice models.
Gemini 3.1 Pro
Powerful, but over-engineers simple vibe-coding tasks.
Our take
Gemini 3.1 Pro is no longer recommended for simple landing pages because the video says it often over-engineers and misses the requested shape.
Best for
- Structured tasks that can tolerate complexity
- Cases where Gemini ecosystem access matters
Watch out
- Can return architecture when you asked for a page
- Cost and latency gap may not be worth it
Why it is ranked here
- The video says it is lagging behind newer options for this use case.
- It over-engineers simple builds, especially landing-page prompts.
- Gemini 3.5 Flash is ranked higher for fast practical UI work.
Video evidence
NEW AI Model Tier List for Vibe Coding!
Takeaway: Avoid Gemini 3.1 Pro for simple landing-page vibe coding.
The source video says it can over-engineer simple projects and miss the requested output.
Open source notes
