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Tier C · Situational tools.

Gemini 3.1 Pro Preview

Powerful, but over-engineers simple vibe-coding tasks.

Canonical model record

Current identity, limits, and pricing

Provider source · checked 2026-08-14 ↗

Status: Preview / limited access
API model ID: gemini-3.1-pro-preview
Context: 1.05M
Max output: 66K
API price / 1M tokens: $2 input · $12 output

Rates shown apply through 200K prompt tokens; longer prompts use the provider's higher tier.

Visual prompt runs

Benchmark runs

Open each generated scene, or compare the same prompt across models.

0 runs

Superbash commentary

Our take

Back to the full tier list →

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 3.7 Flash is ranked higher for fast practical UI work.

Evidence and commentary

2026-08-17

Superbash editorial model ranking

Takeaway: Gemini 3.1 Pro Preview is currently placed in Tier C.

The August 2026 editorial roster places Gemini 3.1 Pro Preview at rank 16.

Open source →

2026-06-17

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 →

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