Key Takeaways
Devstral Small 2505 wins:
- Cheaper input tokens
- Cheaper output tokens
GPT-OSS-20b wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Has reasoning mode
Price Advantage
Devstral Small 2505
Benchmark Advantage
GPT-OSS-20b
Context Window
GPT-OSS-20b
Speed
GPT-OSS-20b
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Devstral Small 2505 | GPT-OSS-20b |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Devstral Small 2505 | GPT-OSS-20b |
|---|---|---|
| License | Open Source | Open Source |
| Author | Mistral AI | OpenAI |
| Released | Unknown | Aug 2025 |
Devstral Small 2505 Modalities
Input
Output
GPT-OSS-20b Modalities
Input
text
Output
text