Vibe Coder
A vibe coder is a person who builds software by describing what they want to an AI model and accepting the code it produces, largely without reading or editing that code themselves. Vibe coders judge progress by whether the app runs and looks right, and they iterate through prompts and pasted error messages rather than through programming knowledge.
What a Vibe Coder Does
A vibe coder practices vibe coding, a term coined by AI researcher Andrej Karpathy in February 2025. He described it as a way of coding where you "fully give in to the vibes, embrace exponentials, and forget that the code even exists." In his description, that meant accepting the AI's changes without reading the differences, pasting error messages straight back into the prompt, and letting the code grow beyond his own understanding. He noted it was not too bad for throwaway weekend projects.
A typical vibe coder describes features in plain language, uses AI app builders or AI coding agents to generate the code, tests by clicking through the result, and asks the AI to fix whatever breaks. Many vibe coders have no programming background. Others are experienced developers who vibe code quick prototypes.
The developer Simon Willison draws a useful line here: if you review the AI's code, test it and can explain how it works, that is software development with AI assistance, not vibe coding.
Why the Role Matters
Vibe coders move from idea to working prototype in hours, and they open software creation to people who could not build it before. That speed is a real advantage for testing ideas cheaply.
The risks grow as the product does. Code nobody has read can hide security holes and fragile structure. Without product methodology, vibe coders can also build features nobody asked for and pile up direction-less code, because the AI will build whatever it is asked. Product context also gets lost between sessions, so the AI contradicts earlier decisions. Vibe coders benefit most from lightweight structure layered onto their speed: validation of the problem, clear priorities and written requirements the AI can follow. For practical ways to keep that context stable, read about rapid prototyping with vibe coding while keeping product context in sync.
Vibe Coder Example
A restaurant owner with no coding experience builds a shift-swap app for her staff over a weekend, using an AI app builder and a series of prompts. It works well for her team. When other restaurants ask to use it, she tries to add support for multiple locations, and the AI's changes keep breaking existing schedules. Because she has never read the code, she cannot tell why, and she needs a written specification and an engineer's review before going further.
Vibe Coder vs. Solo Builder vs. Technical Founder
The labels are related but separate. A vibe coder is defined by a way of building: prompting and accepting AI output without close review. A solo builder is defined by working alone across every part of a product, whatever their method. A technical founder starts a company and has the engineering skill to understand and own its code. A technical founder may vibe code a prototype, but they can read and fix what the AI wrote.