Key Takeaways
Phi 4 wins:
- Cheaper output tokens
GPT-5 Nano wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Has reasoning mode
Price Advantage
Phi 4
Benchmark Advantage
GPT-5 Nano
Context Window
GPT-5 Nano
Speed
GPT-5 Nano
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Phi 4 | GPT-5 Nano |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Phi 4 | GPT-5 Nano |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Microsoft | OpenAI |
| Released | Jan 2025 | Aug 2025 |
Phi 4 Modalities
Input
text
Output
text
GPT-5 Nano Modalities
Input
textimagefile
Output
text