All Models

Hermes-4-405B

Reasoning Tool Calling Open Weights Structured Output

Reasoning model for deliberate analysis, multi-step problem solving, and tool use

Providers 3
Released Aug 25, 2025
Input Modalities text
Output Modalities text
Tarsk Use coding

Available Providers (3)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Nebius Token Factory NousResearch/Hermes-4-405B $1/MTok $3/MTok 128K 8.2K
Kilo Gateway nousresearch/hermes-4-405b $1/MTok $3/MTok 131.1K 26.2K
OpenRouter nousresearch/hermes-4-405b $1/MTok $3/MTok 131.1K 131.1K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output