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Hermes 3 405B InstructOPEN
Hermes 3 405B Instruct (Nous Research): live API pricing, context window and the best open-source alternatives, tracked daily by olud.ai.
Prices update automatically — checked hourly against provider list prices.
About this model
Hermes 3 405B Instruct is an open-weight AI model by Nous Research. You can download and self-host it for free; the prices below are hosted-API list prices, tracked hourly, for when you prefer convenience over self-hosting.
Frequently asked questions
What is Hermes 3 405B Instruct?
Hermes 3 405B Instruct is an AI language model from Nous Research. It is open-weight: you can download it and run it on your own hardware, for free.
Is Hermes 3 405B Instruct free?
The weights are free and open — you can self-host Hermes 3 405B Instruct and pay nothing per token. If you prefer a hosted API, list prices are $1 per million input tokens and $1 per million output tokens.
Can I self-host Hermes 3 405B Instruct?
Yes. Hermes 3 405B Instruct has open weights, so you can download it and run it on your own GPU or server with tools like Ollama, vLLM or llama.cpp — with no per-token cost.