Hermes 4 405B

Nous ResearchReleased Aug 26, 2025KnowledgeAug 2024
Context
131K
Max output
131K
Serving providers
2
Cheapest input
$1.00 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
NebiusCheapest$1.00$3.001
Standardnebius/NousResearch/Hermes-4-405B
ComponentUnitStandard
Text input/1M tok$1.00
Text output/1M tok$3.00
OpenRouter$1.00$3.001

Price history

OpenRouter routed quote

OpenRouter's price is a routed quote. It moves with whichever upstream route OpenRouter prefers that day, so we do not track it as a price history.

Cost calculator

estimate your monthly spend on this model
$440
estimated / month

Model IDs

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nousresearch/hermes-4-405bnebius/NousResearch/Hermes-4-405B

Frequently asked questions

Hermes 4 405B pricing, context and availability

How much does Hermes 4 405B cost?

Hermes 4 405B costs $1.00 per 1M input tokens from Nebius, and $3.00 per 1M output tokens from Nebius.

What is the context window of Hermes 4 405B?

Hermes 4 405B accepts up to 131K tokens of context and can return up to 131K output tokens.

Which providers serve Hermes 4 405B?

Hermes 4 405B is available from 2 serving providers, each with its own pricing and model ID. Nebius is currently the cheapest.

What can Hermes 4 405B do?

Hermes 4 405B supports tool use and reasoning.

Other Nous Research models

compare pricing across the Nous Research lineup
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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