What Is Vibe Coding? The 2025 Term, the Tools, and the Trade-offs
Vibe coding is building software by describing what you want to an AI in plain English and letting it write the code, often accepting the output without reading it line by line. The term is barely a year old, it already has a defined tool landscape, and it has real trade-offs worth understanding before you rely on it.
Where the term came from
The phrase was coined in February 2025 by Andrej Karpathy, a co-founder of OpenAI and former AI lead at Tesla, in a post on X. He described a way of working where you “fully give in to the vibes, embrace exponentials, and forget that the code even exists,” prompting an AI (he used Cursor with Anthropic’s models, often via voice) and accepting what it produced.
The term spread fast. Merriam-Webster listed it as a trending expression in March 2025, and Collins English Dictionary named it Word of the Year for 2025.
What vibe coding actually means
It helps to be precise, because the term gets stretched. As developer Simon Willison argued, not all AI-assisted programming is vibe coding. The distinction is about review:
- Vibe coding — you describe the result, accept AI-generated code largely without reviewing it, and steer with follow-up prompts based on whether it works.
- AI-assisted coding — you use AI to help write code but still read, understand, and take responsibility for it.
The line matters. Vibe coding is fast and accessible precisely because you offload understanding to the AI, which is also exactly why it carries risk for anything important.
The vibe coding tool landscape
Several platforms now compete to be the tool you vibe code in. They split roughly into app builders and code-editor assistants:
| Tool | What it is | Notable trait |
|---|---|---|
| Base44 | Full-stack app generator | Prompt to deployable app with auth and hosting; Wix acquired it |
| Replit Agent | Full-stack builder in a browser IDE | Glass box, shows you the code; effort-based pricing |
| Lovable | AI web app builder | Popular for front-end-heavy apps |
| Bolt (bolt.new) | In-browser app builder | Fast prototyping and deploy |
| v0 | UI generation from Vercel | Strong at generating front-end components |
| Cursor | AI-native code editor | Where Karpathy coined the term; keeps you close to the code |
App builders like Base44, Lovable, and Bolt aim to hand you a finished app. Editor-based tools like Cursor keep you nearer the source. Replit sits in between, an app builder that still shows the code. For a wider view, see our roundup of no-code AI automation tools.
The pros
- Speed. An idea can become a working prototype in minutes instead of days.
- Accessibility. Non-developers can build real, functional software without learning to code.
- Lower cost to start. No need to hire a developer to validate an idea or build an internal tool.
- Great for prototypes and MVPs. Ideal when the goal is to test a concept fast.
The cons
- Bugs you cannot see. If you do not read the code, you cannot catch subtle errors before they bite.
- Security risks. AI-generated code can ship vulnerabilities; Lovable, for instance, was reported to have generated code with security flaws. Anything touching payments or personal data needs real review.
- Maintenance debt. Code you do not understand is hard to fix or extend later.
- Unpredictable cost. Credit- and effort-based pricing means iteration can get expensive, as the Replit Agent pricing backlash showed.
Who vibe coding is for
Vibe coding is a strong fit if you are a founder validating an idea, a solopreneur building an internal tool, or anyone prototyping something where speed beats polish. It is a poor fit for production systems handling sensitive data, regulated industries, or anything where an undetected bug is costly, unless a developer reviews the output. A reasonable rule: vibe code to learn and to prototype; review the code before real users or real money depend on it.
What comes after the code
Vibe coding gets you a product. It does not get you a business. Once your app exists you still have an inbox to answer, meetings to schedule, and customers to follow up with, work that no app builder does for you. That is a different kind of AI: an executive assistant like Carly, which runs your email, calendar, and follow-through over email with no app to install. Each Carly agent gets its own email address, custom instructions, and memory, with 200+ integrations across 40+ categories, and pricing starts at $35/month. Vibe coding tools build the software; Carly handles the operations around it.
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See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
