Thin Slice / Blog

How Long Does It Take to Build an MVP?

By Audrey Graham3 min read
Short answer

A focused MVP with one user type and one core workflow can go live in four to six weeks. Products with marketplaces, complex integrations or native mobile apps usually take three to six months. The biggest variable is scope, not developer speed.

You were told three months. It is month seven, and the launch date has moved again. That story is common, and it is almost never about how fast the developer types.

A focused MVP can go live in four weeks. Below is the week-by-week timeline I use, the four things that quietly double timelines, and how to keep yours on schedule.

A week-by-week MVP timeline

Week 0: Scope. A 30-minute call to find the one path your first users need. I write it up as a fixed scope with a fixed quote. Nothing gets built until we both agree on what "done" means.

Week 1: Foundations. Accounts, the data model and the deploy pipeline. By the end of the week you have a live staging link, even if it only does one thing.

Week 2: The core path. The main workflow works end to end with real data. We do a demo call at the midpoint.

Week 3: AI and polish. The AI feature gets tuned on your real inputs. A few real users click through it, and we fix what they run into.

Week 4: Launch. Production deploy, a handoff walkthrough and two weeks of bug fixes after launch.

Why MVP projects run long

  1. Scope that keeps growing. Every "small" addition costs a day or two. Ten of them cost a month.
  2. Waiting on decisions. If the builder is waiting days for answers, the calendar slips even though no work is happening.
  3. Integrations nobody tested. An outside API that is poorly documented can eat a week.
  4. Building for scale too early. Your first 100 users do not need the infrastructure of your first 100,000.

Curious whether your idea fits in four weeks? Try the scope planner on the homepage, or ask me directly.

Book a free scoping call →

How to keep your timeline short

  • Agree on scope in writing before work starts.
  • Pick one person who can make product decisions within a day.
  • Put risky integrations in week one, not week four.
  • Keep a v2 list so good ideas have somewhere to go besides the current build.

Frequently asked questions

Can you build an MVP in two weeks?

Sometimes, for very simple internal tools or a single-feature product. Most products that need accounts, real data and a working AI feature need closer to four weeks to be solid.

How long does an AI MVP take compared to a regular one?

Add about a week for an AI feature that has to be accurate, mainly for testing it on real inputs and building a way for users to correct mistakes.

What slows down MVP development the most?

Changing scope in the middle of the build. It is the most common reason projects run long.

Get your idea live in four weeks

The Four-Week MVP works because the scope is fixed before we start. Book a free call, and within two business days you will have a written plan showing what ships in week one, week two and launch week.

  • Free 30-minute call
  • Fixed price from $7,500
  • Live in four weeks
  • You own the code

I take on two to three builds at a time, so start dates fill up.

Book a free scoping call →