Hybrid reasoning model post-trained from Llama 3.1 405B.
Released
Aug 26, 2025
Context window
131K tokens
Max output
Not disclosed
Parameters
405B
Input price
Not disclosed
Output price
Not disclosed
Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.
Pricing
No first-party API. This is an open-weights release you can run yourself.
Specifications
- Developer
- Nous Research
- Model type
- Text LLM
- Architecture
- Dense
- Parameters
- 405B
- Input
- Text
- Output
- Text
- Knowledge cutoff
- Not disclosed
- License
- Llama 3 Community License
- API access
- No first-party API
- Capabilities
- Flagship Reasoning