OpenRouter
Catalog quote- Input
- $1.00
- Output
- $3.00
nousresearchListed Aug 26, 2025
Nous: Hermes 4 405B
Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with...
Context window131.1K
Max output118K
Parameters405B
Provider endpoints2
Benchmark results0
Measured performance
All leaderboards ↗Benchmark results
No published results in this index yet
Scores appear here when an evaluation matches this exact model.
Access & cost
2 quotesPrices across providers
- Input
- $1.00
- Output
- $3.00
Model specifications
- Developer
- nousresearch
- Modality
- Language
- Context
- 131,072 tokens
- Maximum output
- 117,964 tokens
- Weights
- Open weights
- Provider listed
- Aug 26, 2025
- First discovered
- Oct 16, 2026
More from nousresearch
View all ↗nousresearchListed Jul 29
Nous: Hermes 3 70B Instruct
Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence,…
131.1K context70BStructured outputOpen weightsNo reported score
No reported score