Key Takeaways
Step 3.5 Flash wins:
- Cheaper input tokens
- Cheaper output tokens
- Larger context window
- Faster response time
- Has reasoning mode
- Supports tool calls
MiMo v2 Pro wins:
- Higher intelligence benchmark
- Better at coding
Price Advantage
Step 3.5 Flash
Benchmark Advantage
MiMo v2 Pro
Context Window
Step 3.5 Flash
Speed
Step 3.5 Flash
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Step 3.5 Flash | MiMo v2 Pro |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Step 3.5 Flash | MiMo v2 Pro |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Stepfun-ai | Xiaomi |
| Released | Jan 2026 | Unknown |
Step 3.5 Flash Modalities
Input
text
Output
text
MiMo v2 Pro Modalities
Input
Output