Price Per TokenPrice Per Token
Google
Google
vs
Google
Google

Gemini 3.1 Pro Preview vs Gemma 4 31B Instruct

A detailed comparison of pricing, benchmarks, and capabilities

Get our weekly newsletter on pricing changes, new releases, and tools.

Join the Price Per Token Community

Key Takeaways

Gemini 3.1 Pro Preview wins:

  • Larger context window
  • Faster response time
  • Higher intelligence benchmark
  • Better at coding
  • Has reasoning mode

Gemma 4 31B Instruct wins:

  • Cheaper input tokens
  • Cheaper output tokens
Price Advantage
Gemma 4 31B Instruct
Benchmark Advantage
Gemini 3.1 Pro Preview
Context Window
Gemini 3.1 Pro Preview
Speed
Gemini 3.1 Pro Preview

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureGemini 3.1 Pro PreviewGemma 4 31B Instruct
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGemini 3.1 Pro PreviewGemma 4 31B Instruct
LicenseProprietaryProprietary
AuthorGoogleGoogle
ReleasedFeb 2026Apr 2026

Gemini 3.1 Pro Preview Modalities

Input
audiofileimagetextvideo
Output
text

Gemma 4 31B Instruct Modalities

Input
imagetextvideo
Output
text

Frequently Asked Questions

Gemma 4 31B Instruct has cheaper input pricing at $0.12/M tokens. Gemma 4 31B Instruct has cheaper output pricing at $0.37/M tokens.
Gemini 3.1 Pro Preview scores higher on coding benchmarks with a score of 55.5, compared to Gemma 4 31B Instruct's score of 38.7.
Gemini 3.1 Pro Preview has a 1,048,576 token context window, while Gemma 4 31B Instruct has a 262,144 token context window.
Gemini 3.1 Pro Preview supports vision. Gemma 4 31B Instruct supports vision.