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Tier C · Situational tools.

Gemini 3.1 Pro Preview

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

API pricing

USD per million tokens · API price
Input
$2
Output
$12
Context window
1.05M
Pricing details and specifications

Try the active visual tests

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Editorial verdict

Where this model fits

Back to all benchmarks →

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

  1. The video says it is lagging behind newer options for this use case.
  2. It over-engineers simple builds, especially landing-page prompts.
  3. Gemini 3.7 Flash is ranked higher for fast practical UI work.

Evidence

2026-09-23

Superbash editorial model ranking

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

The September 2026 editorial roster places Gemini 3.1 Pro Preview at rank 17.

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 →

Related guides

Sources, pricing details and methodology

Verified model facts

Model specifications

Provider source · checked 2026-09-02 ↗
Status
Preview / limited access
API model ID
gemini-3.1-pro-preview
Context
1.05M
Max output
66K
License
Not publicly verified
Access route
Not publicly verified
Modalities
Not publicly verified
Hardware
Not publicly verified
API price · USD / 1M tokens
$2 input · Not verified cached input · $12 output

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