Detailed explanation
Examples
Frequently asked questions
Is prompt engineering still useful in 2026?
Yes. Even with stronger models, a well-designed prompt remains the cheapest and fastest way to improve quality, format, and reliability.
What is chain-of-thought?
A technique where you ask the model to explain its reasoning step by step before giving the final answer, which significantly improves results on complex tasks.
Related terms
AI Agent
An AI agent is an autonomous software system that perceives its environment, reasons, and takes actions to achieve a goal — often using an LLM as its brain and tools (APIs, search, code) to act.
Generative AI
A family of AI models that can create new content (text, image, audio, video, code) from a prompt.
LLM (Large Language Model)
An LLM is a large language model trained on massive text corpora, capable of understanding and generating natural language across many tasks: writing, summarization, translation, code, reasoning.
Prompt
A natural-language instruction sent to a generative AI model to get a response.
RAG (Retrieval-Augmented Generation)
RAG is a technique that combines an LLM with a search engine over your own documents: the model retrieves the relevant information first, then generates an answer grounded in that information.
Last updated: 7/15/2026