Free reference site covering prompting techniques, papers and model notes
The Prompt Engineering Guide, maintained by DAIR.AI, is a free reference site that collects prompting techniques, research papers and model-specific guidance in one place. It explains ideas such as chain-of-thought, self-consistency and retrieval augmentation with worked examples, and links out to the papers behind them, which makes it useful for both quick lookups and deeper reading. Content covers text models as well as image and evaluation topics. It is documentation rather than software: there is no account and no evaluation harness, so it complements testing tools rather than replacing them.
Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.
learning prompt techniques, team onboarding, research pointers and teaching
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No. It covers techniques and models from several providers, which makes it a reasonable shared reference. Specific examples can still drift out of date as model behaviour changes.
Some sections include runnable notebooks and examples, particularly for retrieval and evaluation topics. The site is primarily explanatory, so expect to bring your own environment to run anything.
It is actively maintained but cannot track every model release. Treat newer model features as something to verify against official documentation rather than assuming the guide covers them.
Community library of shared prompts with a chat interface to run them
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Free educational resource teaching prompt engineering from basics to research topics
Searchable gallery of AI image prompts shown alongside the images they made