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Hermes 4 Large

nebius/nousresearch/hermes-4-405b

Nebius model · Served by Nebius · live on the gateway

Input / 1M
$1.00
Output / 1M
$3.00
Context
128K tokens
Max output
8K tokens
Input
Text
Released
1y ago

Pricing

Input tokens$1.00 per 1M
Output tokens$3.00 per 1M
Provider list priceExactly what your balance is debited; our fee is charged when you buy credits

About Hermes 4 Large

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

What it supports

  • Tool calling (function calling)
  • JSON mode and structured output
  • Image input (vision)
  • Audio input
  • Extended reasoning
  • Streaming responses
  • OpenAI SDK, Anthropic SDK and any OpenAI-compatible client

Make a request

curl https://rapidrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nebius/nousresearch/hermes-4-405b",
    "messages": [{ "role": "user", "content": "Hello" }]
  }'

Frequently asked

How do I call Hermes 4 Large through an OpenAI-compatible API?

Point any OpenAI-compatible client at https://rapidrouter.ai/api/v1 with a Rapid Router API key and set the model to nebius/nousresearch/hermes-4-405b. The chat completions endpoint is https://rapidrouter.ai/api/v1/chat/completions.

What is the context window of Hermes 4 Large?

Hermes 4 Large has a context window of 128,000 tokens on Rapid Router, and returns up to 8,192 output tokens per reply.

What can Hermes 4 Large do?

On Rapid Router, Hermes 4 Large supports JSON mode.

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