Nous Research
Hermes 3 405B 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, and improvements across the...
Model facts
- Context window
- 131K tokens
- Maximum output
- 16K tokens
- Cheapest paid input
- $1 per 1M tokens
- Cheapest paid output
- $1 per 1M tokens
- Open weights
- yes
- Providers
- 1
Capabilities and modalities
structured output, temperature control, open weights, text.
Observed price history
- 2026-08-24: $1 input / $1 output per 1M tokens
API providers
- OpenRouter — model id nousresearch/hermes-3-llama-3.1-405b; $1 input / $1 output per 1M tokens; provider documentation