Last refreshed 2026-05-11. Next refresh: weekly.
Why use Hermes-4-405B on Nous Portal?
Nous Portal offers Hermes-4-405B with pay-as-you-go pricing at $0.09/1M input tokens. Nous Portal is Nous Research's hosted inference platform and subscription portal, providing API keys, billing, and access to its full model catalog including fine-tuned variants.
Setup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: hermes-4-405bhermes-4-405bRequest example
hermes-4-405b.Gotchas
No curated gotchas have been sourced for this exact provider/model route yet.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.09 |
| Output tokens | $0.37 |
Capabilities
About Hermes-4-405B
Hermes 4's 405B hosted variant on Nous Portal. The portal describes it as the largest Hermes 4 model, focused on advanced reasoning and creative depth rather than inference speed or cost.
FAQ
What does Hermes-4-405B cost on Nous Portal?
On Nous Portal, Hermes-4-405B costs $0.09 per 1M input tokens and $0.37 per 1M output tokens.
What is the context window for Hermes-4-405B on Nous Portal?
Hermes-4-405B supports a 128k token context window on Nous Portal.
Who created Hermes-4-405B?
Hermes-4-405B was created by Nous Research as part of the Hermes 4 model family.
Is Hermes-4-405B open source?
Hermes-4-405B has open weights under Llama 3 Community according to the seed data, but that does not necessarily mean an OSI-approved open-source license.