Hermes 4 - Llama-3.1 405B
Open weights
Nous Research's flagship hybrid-reasoning post-training of Llama-3.1-405B - switchable <think> mode, ~60B-token post-training corpus.
- Publisher
- Nous Research
- Family
- Hermes
- Params
- 405B
- Context
- 131K
- Input
- Output
- License
- Llama 3 Community
- Released
- 27 Aug 2025
Cite
Notes
Only stored in your browser.
Context
131K
Input
$1
/1M tok
Output
$3
/1M tok
Blended
$1.50
#330/ 414/1M · 3:1
Speed
40
#203/ 414tok/s
Price & speed via Artificial Analysis · ranked across tracked models
Reported on 9 evals across 6 domains - best 72.9% on MMLU-Pro · #139 of 342