Key Takeaways
Llama 3.1 405B (base) wins:
- Cheaper input tokens
- Cheaper output tokens
GPT-5.2 Pro wins:
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
- Has reasoning mode
Price Advantage
Llama 3.1 405B (base)
Benchmark Advantage
GPT-5.2 Pro
Context Window
GPT-5.2 Pro
Speed
GPT-5.2 Pro
Pricing Comparison
Benchmark Comparison
Context & Performance
Capabilities
Feature Comparison
| Feature | Llama 3.1 405B (base) | GPT-5.2 Pro |
|---|---|---|
Vision (Image Input) | ||
Tool/Function Calls | ||
Reasoning Mode | ||
Audio Input | ||
Audio Output | ||
PDF Input | ||
Prompt Caching | ||
Web Search |
License & Release
| Property | Llama 3.1 405B (base) | GPT-5.2 Pro |
|---|---|---|
| License | Open Source | Proprietary |
| Author | Meta-llama | OpenAI |
| Released | Aug 2024 | Dec 2025 |
Llama 3.1 405B (base) Modalities
Input
text
Output
text
GPT-5.2 Pro Modalities
Input
imagetextfile
Output
text