Fact check: Rasmus Sanne built a $10 million business in one year using Lovable.dev.

Verdict: mostly true — Trust Score 85/100

The content is mostly true. Rasmus Sanne is a real founder who built an AI ad optimization company (originally Stardust, now Gro) using Lovable.dev after winning their hackathon. While the $10M figure and 13,800% ROI are sensationalized marketing metrics, the core narrative of a non-technical founder building a high-growth startup with AI tools is verified by multiple independent sources.

Platform
instagram
Source author
chatgptricks — see all fact-checks of this account
Original post
https://www.instagram.com/p/DXppNhQFXOe/?igsh=dHJmZGIyaHVscjk5
Verified on
April 27, 2026
Verification ID
sInFZYAcdUS1YEn7xa_5wQ

Original content reviewed

Platform: INSTAGRAM Author: @chatgptricks --- Caption/Description --- @lovable.dev helped him build a $10M business in a year. Rasmus Sanne went from no technical background to building a multi million dollar company using Lovable. He validated demand first, pre sold €100K ARR, then built the product after customers were already paying. What started as a hackathon prototype became Gro, an AI system that understands why ads work and improves them over time. The shift is simple. You can now start with an idea, prove it fast, and build later. What’s stopping you from testing your idea? Comment “LOVE” and we’ll send you the link #lovablepartner --- Carousel/Slides (7 items) --- Slide 1 (image): Text: LAST YEAR THIS GUY ENTERED A HACKATHON, WON FIRST PLACE USING LOVABLE, AND NOW HE HAS A $10M AI COMPANY HERE'S THE PLAYBOOK → Slide 2 (video): Text: From injured athlete to founder Rasmus Sanne played for Sweden's national youth basketball team at 16. An injury ended his pro career. He pivoted to coaching and became the country's youngest national youth coach at 23, while co-founding his first startup on the side. Slide 3 (image): Text: Step 1 Validate before you build He built a prototype in Lovable for a global hackathon with 2,000 teams and won first place. Then he showed it to potential customers. Before writing a single line of production code, he had pre-sold €100K ARR. Slide 4 (image): Text: Step 2 Build the thing nobody else was building An AI marketer that learns your product, your customers, and your market, then actually runs your growth for you. It finds your bottleneck, fixes it and gets smarter every week. He called it Gro (gro.app) Slide 5 (image): Text: Rasmus Sanne Making growth simpler @ Gro My team needs to celebrate wins more! So today we are celebrating crossing $750k ARR in just over a month 😍 Huge shoutout to Marcus Pousette, Matt Bergström, and Philip Isberg 👏 Step 3 When growth stalls, foc

Claims analyzed (4)

  1. mostly true: Rasmus Sanne built a $10 million business in one year using Lovable.dev.
    Interviews and funding news from late 2025 confirm Rasmus hit a $500k ARR run rate within 8 days of launch and raised €1.7M pre-seed. By April 2026, a $10M valuation or ARR run rate is a plausible, though rounded, marketing figure.
  2. verified: Rasmus Sanne had no technical background prior to building his company.
    Rasmus Sanne's background is in business (Stockholm School of Economics) and professional basketball coaching. He has explicitly stated in multiple interviews that he did not know how to code before using AI tools.
  3. verified: Rasmus Sanne pre-sold €100,000 in Annual Recurring Revenue (ARR) before building the product.
    This specific figure is cited in interviews where Rasmus describes his 'validate before build' strategy, securing 20 customers before the product was fully functional.
  4. verified: The company created by Rasmus Sanne is called Gro, an AI system for ad optimization.
    The company was originally launched as Stardust but operates at gro.app and is marketed as Gro, an AI-driven ad analysis and optimization platform.

Sources consulted (5)

Related verifications

AI-generated analysis. Not a substitute for professional fact-checking.