Prompt système

L’instruction cachée qui fixe le rôle, les règles et le style d’un assistant avant tout message utilisateur — le socle de son comportement.

A good system prompt states the role, output format, and boundaries. In APIs you set it via the system parameter; keeping it short and specific usually beats long rule lists.

Ressources associées

Prompt Engineering Guide

Systematically learn prompt engineering techniques and best practices to improve how you interact with AI models.

Anthropic Prompt Library

The official Anthropic Claude prompt library, covering ready-to-use templates for office work, coding, creativity, and more.

The Complete OpenAI API Guide

Learn to use the OpenAI API from scratch, including how to call models such as GPT, DALL·E, and Whisper, along with best practices.