Hermes 3 Llama 3.1 405b API

Hermes 3 Llama 3.1 405b is a large language model by Nous Research, available on the Venice API as hermes-3-llama-3.1-405b. It runs privately, with zero data retention.Hermes 3 405B is a frontier level, full parameter finetune of the Llama-3.1 405B foundation model, focused on aligning LLMs to the user, with powerful steering capabilities and control given to the end user.

Hermes 3 Llama 3.1 405b API pricing

Model ID	Variant	Privacy	Price
`hermes-3-llama-3.1-405b`	Standard	Private	$1.10 input /$ 3.00 output per 1M tokens

Hermes 3 Llama 3.1 405b specifications

Spec	Value
Provider	Nous Research
Released	Sep 25, 2025
Privacy	Private
Open weights	Yes
Context window	125K tokens
Max output	16K tokens
Served precision	FP8

How to use the Hermes 3 Llama 3.1 405b API

Send requests to POST https://api.venice.ai/api/v1/chat/completions with "model": "hermes-3-llama-3.1-405b" and your API key.

curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "hermes-3-llama-3.1-405b",
    "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }]
  }'