Run Hermes on GPT-4o

by Nous ResearchPersonal agent

Hermes is an open agent from Nous Research, the team behind the Hermes family of open-weight models. It runs as a terminal agent for general assistant and tool-use workflows, designed in the open and built to be steerable and unopinionated rather than locked down. On Opper it runs on a single key across 700+ models with full observability and a choice of region.

Run

Hermesonin

Launch Hermes on GPT-4o

Set up with agents

Paste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.

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Where you can run it

GPT-4o runs on the routes below. Route only to EU providers when your data has to stay in Europe. One route also sells priority processing: the same model at another price, picked per request with service_tier. How service tiers work.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
Azure	EU		No	$2.75	$11.00	$1.38	Not offered on this route
OpenAI	US		No	$2.50	$10.00	$1.25
OpenAI	US		No	$2.50	$10.00	$1.25	Not offered on this route

The model

GPT-4o by OpenAI is a capable general-purpose omnimodal model with a 128K context window, vision input, structured output, and tool use.

Available on

AzureEUOpenAIUS

Pricing from$2.50/ 1M input$10.00/ 1M output$1.25/ 1M cache read128Kcontext

Privacy

ZDR
Training: No
Region: EU + US

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