AI Product Design Sprint: Working Prototype in 5 DaysLauri Lännenmäki
Static mockups don't convince investors or users. Working products do. In 5 days I take your idea from a blank page to a designed, coded and clickable prototype that runs in the browser with real interactions, and with real AI responses if your product uses AI.
Everything is designed and built in real code from day one. I combine 15 years of product design with AI-assisted coding, so there are no static mockups and no slow "design first, then wait weeks for dev" handoff.
This service is perfect if you:
Are pitching investors or stakeholders and need something real to demo
Want to test a product idea with users before committing to a full build
Are designing an AI product and need to figure out the UX (chat, agents, generative UI)
Need a fast proof of concept for a new feature
The 5-day sprint:
Day 1: kickoff, user flows and key decisions.
Day 2: the UI designed directly in code, so you can click through real screens.
Days 3–4: AI-assisted build of the full working prototype.
Day 5: review, polish and handover.
Deliverables
Live prototype link
A working, interactive prototype in the browser.
Source code
In your GitHub, ready to extend.
Video walkthrough
A recorded explanation of decisions and next steps.
FAQs
Lauri's other services
Starting at$2,900
Duration1 week
Tags
Claude
Next.js
React
TypeScript
AI Designer
Design Engineer
Product Designer
Prototyper
UX Designer
Service provided by
Lauri Lännenmäki proFinland
- $50k+
- Earned
- 11
- Paid projects
- 4.98
- Rating
- 409
- Followers
AI Product Design Sprint: Working Prototype in 5 DaysLauri Lännenmäki
Starting at$2,900
Duration1 week
Tags
Claude
Next.js
React
TypeScript
AI Designer
Design Engineer
Product Designer
Prototyper
UX Designer
Static mockups don't convince investors or users. Working products do. In 5 days I take your idea from a blank page to a designed, coded and clickable prototype that runs in the browser with real interactions, and with real AI responses if your product uses AI.
Everything is designed and built in real code from day one. I combine 15 years of product design with AI-assisted coding, so there are no static mockups and no slow "design first, then wait weeks for dev" handoff.
This service is perfect if you:
Are pitching investors or stakeholders and need something real to demo
Want to test a product idea with users before committing to a full build
Are designing an AI product and need to figure out the UX (chat, agents, generative UI)
Need a fast proof of concept for a new feature
The 5-day sprint:
Day 1: kickoff, user flows and key decisions.
Day 2: the UI designed directly in code, so you can click through real screens.
Days 3–4: AI-assisted build of the full working prototype.
Day 5: review, polish and handover.
Deliverables
Live prototype link
A working, interactive prototype in the browser.
Source code
In your GitHub, ready to extend.
Video walkthrough
A recorded explanation of decisions and next steps.
FAQs
Lauri's other services
$2,900