Key Takeaways
GPT-OSS-120b wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
- Higher intelligence benchmark
- Supports vision
GLM 4.5 Air wins:
- Better at coding
- Better at math
Price Advantage
GPT-OSS-120b
Benchmark Advantage
GLM 4.5 Air
Context Window
GLM 4.5 Air
Speed
GPT-OSS-120b
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | GPT-OSS-120b | GLM 4.5 Air |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | GPT-OSS-120b | GLM 4.5 Air |
|---|---|---|
| License | Open Source | Open Source |
| Author | OpenAI | Z-ai |
| Released | Aug 2025 | Jul 2025 |
GPT-OSS-120b Modalities
Input
text
Output
text
GLM 4.5 Air Modalities
Input
text
Output
text