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Hermes

Made Crystal Clear

A practical, visual guide to running, steering, and building with the open Hermes models from Nous Research

Open weights, steerable behaviour, and control that stays with you. Hermes does what your system prompt says, calls tools reliably, and runs on your own hardware or a low-cost API. This guide shows you how to choose, run, prompt, tool-equip, fine-tune, serve, and safeguard Hermes, explained visually and hands-on.

Pages
76
Level
Beginner to advanced
Status
Available

Inside the book

  1. 01What Hermes Is, and Why Open, Steerable Models Matter
  2. 02Core Concepts: The Family, ChatML, and How Hermes Thinks
  3. 03Getting Started: Your First Hermes in Ten Minutes
  4. 04Choosing a Model and Where to Run It
  5. 05Steering with System Prompts and Reasoning
  6. 06Structured Output and Tool Use
  7. 07Fine-Tuning Hermes on Your Data
  8. 08Serving in Production
  9. 09Guardrails, Safety, and Evaluation
  10. 10The Business Case, Cheat Sheet, and Learning Path

You'll leave with

  • Run Hermes locally with Ollama and in the cloud with vLLM or a hosted API
  • Steer behaviour with the system prompt, and get reliable tool calls and JSON
  • Fine-tune with LoRA, serve efficiently, and own your guardrails and costs

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