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Hermes 4 405B — Free AI Chat on Rewind.ai

Chat with Hermes 4 405B for free — no signup, no credit card. Nous's Hermes 4 405B runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.

What is Hermes 4 405B?

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with.

How does Hermes 4 405B work?

Type your message in the box above and Hermes 4 405B replies instantly — no setup required. Your chat history is saved locally in your browser; sign up free to sync it across devices and get an extra 10,000 tokens. You can switch between Hermes 4 405B and other models at any time from the picker at the top.

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