Nous Research
Nous: Hermes 4 405B
Reasoning model for deliberate analysis, multi-step problem solving, and tool use
Model facts
- Context window
- 131K tokens
- Maximum output
- 118K tokens
- Cheapest paid input
- $1 per 1M tokens
- Cheapest paid output
- $3 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, temperature control, text.
Observed price history
- 2026-08-24: $1 input / $3 output per 1M tokens
API providers
- Kilo Gateway — model id nousresearch/hermes-4-405b; $1 input / $3 output per 1M tokens; provider documentation