Prompt engineering, 2026
Learn to prompt well — and know why it works.
A clear, evidence-based guide to prompt engineering. Plain enough to start today, deep enough to rely on in production, and honest about what changed in 2026.
Two ways in
Start with the ideas that matter most: writing a clear request, structuring it, and avoiding the mistakes that cause most weak answers. No jargon.
Start from the basics I do this professionallyGo straight to the patterns that matter in production: structured output, context engineering, model routing, self-verification, and review loops.
Jump to the patternsWhy trust this
Grounded in the official sources, not hot takes
Every pattern here is checked against the published guidance from the people who build these models — OpenAI, Anthropic, Google, Meta, Microsoft — plus peer-reviewed research. Where the advice changed in 2026, we say so, and we link the source so you can verify it yourself.
The core