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Vibe coding is an outcome-first way to build software by describing what you want to an AI and iterating on the code it generates. The term is also used more narrowly for accepting AI-written code without reviewing or understanding it. That distinction matters: using AI to help write code can include careful testing and review; vibe coding in the stricter sense does not.

What does vibe coding mean?

IBM describes vibe coding as a loosely defined software-development practice in which people prompt AI tools to generate code rather than writing all of it manually. The OpenSSF glossary uses a stricter definition: “Vibe coding is the process of generating and accepting AI-generated code without reviewing it or understanding it, ‘instead relying entirely on results and follow-up prompts to guide changes’.”

OpenSSF credits Andrej Karpathy with coining the term in February 2025. The glossary reports his original phrasing as “where you fully give in to the vibes… and forget that the code even exists… I don’t read the diffs… when I get error messages I just copy paste them in with no comment…” This is wording as reported by the glossary, not a direct quotation checked against a primary source.

In everyday use, people may call any conversational, AI-assisted coding “vibe coding,” including workflows where they inspect the output. For clarity, this guide distinguishes that broad usage from the stricter practice of not understanding or reviewing generated code.

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How does a beginner try it?

A useful starting loop is prompt, run, observe, and refine. These steps are practical guidance, not an official checklist or a guaranteed way to produce reliable software.

  1. Choose a low-consequence project. Start with a small personal script or prototype that is easy to discard or fix. Avoid sensitive data and anything that could affect other people if it fails.
  2. Describe the result before asking for code. Explain what you want to accomplish, who will use it, and the most important behavior. Ask the AI to outline a small implementation first so you can catch misunderstandings before they spread through the project.
  3. Build one feature at a time. Ask for a small change, run the result, and describe the actual behavior or error precisely. The follow-up-prompt loop is part of OpenSSF’s strict definition; making each request narrow also makes it easier to spot where something went wrong.
  4. Try more than the happy path. Check ordinary inputs and boundary cases, such as a missing value or an unexpectedly long entry. You can ask the AI to suggest tests, but run them yourself: a claim that tests pass is not evidence that they were executed.
  5. Review before sharing or deploying. Check the code, dependencies, data handling, permissions, secrets, and what happens when something fails. If you cannot assess those points, ask someone who can before other people rely on the software.

When is vibe coding a reasonable fit?

Fast, outcome-focused iteration can be useful for a throwaway prototype, a personal tool, or an internal experiment with limited consequences. IBM notes rapid, low-cost MVP experimentation as a potential benefit. Martin Fowler advises that vibe-coded software is best suited to disposable work used by its author or a close group of collaborators who understand and accept the risks. A polished screen or successful demonstration, however, establishes only that the demonstration worked—not that the software is secure, maintainable, or ready for wider use.

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When should you slow down and review the software?

Use review and testing appropriate to the consequences when software is intended for production or will handle credentials, personal information, payments, safety-sensitive tasks, or use by people who cannot assess its risks. These are practical risk considerations, not a claim that one legal rule applies to every project.

AI-generated code still needs engineering work before production, IBM says. Palo Alto Networks also highlights hidden code threats and software-supply-chain complexity. That makes generated code, its dependencies, and its handling of data and permissions part of the review—not just whether the visible feature appears to work.

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For software that others depend on, someone must take responsibility for testing, security review, and future maintenance. If nobody can explain or own the generated implementation, a working prototype is not yet a sound basis for deployment.

What to remember about AI-generated software

  • Vibe coding centers on describing an outcome and using AI to generate much of the implementation; in the strict sense, the user accepts code without reviewing or understanding it.
  • The practical loop is prompt, run, observe, and refine. A successful demo is not proof of secure or maintainable software.
  • Limited, disposable experiments are a more defensible fit than consequential software used by a broad audience.
  • Production use calls for engineering: code review, tests, security attention, and an identified owner for maintenance.

Sources and further reading

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