Key Takeaways
Gemini 3.1 Pro Preview Custom Tools wins:
- Larger context window
- Has reasoning mode
Gemma 4 31B Instruct wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
- Higher intelligence benchmark
- Better at coding
Price Advantage
Gemma 4 31B Instruct
Benchmark Advantage
Gemma 4 31B Instruct
Context Window
Gemini 3.1 Pro Preview Custom Tools
Speed
Gemma 4 31B Instruct
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Gemini 3.1 Pro Preview Custom Tools | Gemma 4 31B Instruct |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Gemini 3.1 Pro Preview Custom Tools | Gemma 4 31B Instruct |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | ||
| Released | Feb 2026 | Apr 2026 |
Gemini 3.1 Pro Preview Custom Tools Modalities
Input
textaudioimagevideofile
Output
text
Gemma 4 31B Instruct Modalities
Input
imagetextvideo
Output
text