Synthesia relentless pursue to Product Market Fit (+36 Months!)
By Creatives Takeover · June 2, 2026
Three years of saying ‘not yet’ 🚫
Achieving product-market fit (PMF) is the holy grail for startups, but few stories illustrate its grueling reality better than Synthesia’s multi-year odyssey. From a promising AI video concept in 2017 to a $1B+ valuation by 2023, Synthesia didn’t stumble into fit—they clawed their way there over 36+ months of pivots, failures, and laser-focused iteration. This journey exposes raw truths for founders: PMF isn’t a sprint; it’s a marathon of customer obsession.
The Genesis: A Vision Too Early
Victor Riparbelli's path to Synthesia began not in Silicon Valley, but Copenhagen. A self-taught tinkerer who once ran a World of Warcraft guild with a voice filter to sound older, Riparbelli spent his early career building e-commerce sites and digital strategies for Danish agencies. By 2014, he'd pivoted to growth marketing at Founders, the Nordic startup studio, and later founded Immersive Futures, a consultancy focused on emerging technologies like VR, AR, and machine learning work that eventually led him to consulting with the UK government.
The turning point came in 2017 when Riparbelli moved to London and met Professor Matthias Niessner, a researcher developing AI techniques for hyper-realistic video generation. The vision was clear and seductive: democratize video creation through AI, eventually enabling anyone to produce Hollywood-quality films from a laptop. Armed with Mark Cuban's $1M seed investment (secured via a well-crafted cold email), Synthesia officially launched.
But vision doesn't equal market. Riparbelli and co-founders Professor Lourdes Agapito and Steffen Tjerrild would spend the next three years learning a brutal lesson: having cutting-edge technology doesn't mean customers will come.
Years 1-3: The Product-Market Fit Desert
The Hollywood Pivot That Didn't Work
Synthesia's initial strategy was logical but flawed. Founders assumed the natural market was Hollywood studios and advertising agencies—creators who valued hyper-realistic AI avatars and video quality. They poured effort into perfecting lip-sync, facial expressions, and realistic avatar rendering, creating stunning demos that nobody wanted to buy.
The quality bar was too high, and the use case was wrong. Filmmakers and agencies had teams, budgets, and preferences for human creativity. AI avatars felt like gimmicks. By month 12-18, the company faced brutal retention metrics and investor skepticism. Nearly 100 European VCs had rejected them. A humbling reality for a team with world-class research credentials.
The Forced Pivot: Listening Instead of Pitching
Around the 24-month mark, something shifted. Instead of chasing prestige clients, Synthesia's team ran deep customer discovery with anyone interested in their product. What emerged was a profound insight: there were billions of people who wanted to create videos but couldn't. They had ideas but lacked access to studios, crews, or editing skills.
This wasn't Hollywood. This wasn't even marketing agencies. This was training departments, HR teams, internal communicators, and small businesses desperate to produce video content at scale. The insight unlocked everything.
Steffen Tjerrild, COO, would later reflect on this period: "I think the first few years of the company, going through the product-market fit desert, really allowed us to have the conviction when we actually found something that worked to not get carried away with innovation potholes." The team doubled down on learning and development (L&D) as the anchor use case, repositioning AI avatars not as cutting-edge tech, but as practical tools solving real workflow problems.
The Breakthrough: Self-Service Goes Instant
By month 30-36, Synthesia launched a self-service offering—drag-and-drop AI video creation from text. The response was instant and overwhelming. Usage exploded. Retention climbed. Founders watching the analytics saw what true PMF looked like: viral adoption from a market segment that hadn't even known Synthesia existed months prior.
Tjerrild recalls: "Once we actually launched the self-service offering, there was just instant product-market fit. We had no idea who was going to use this, but it became very clear there was this long tail of people who'd never had the means or ability to create content before."
Year 4 Onward: From PMF to Scale
Timing Meets Technology
Synthesia's growth trajectory accelerated dramatically post-PMF, but a secondary catalyst arrived in early 2023: ChatGPT. The AI boom legitimized generative AI, flooding the market with founders, marketers, and enterprises suddenly believing AI video was possible. Synthesia, which had already solved the technical problem, was primed to capture this moment.
By June 2023, the company raised $90M in Series C led by Kleiner Perkins and Accel, reaching a $1 billion valuation with 50,000 business customers. Eighteen months later, in February 2025, a $180M Series D round (led by NEA, with participation from Google Ventures, Adobe Ventures, and others) valued the company at $2.1 billion.
The Revenue Inflection
What's remarkable isn't the funding—it's the unit economics. By April 2025, Synthesia had crossed $100M in ARR, a milestone only a handful of AI-native companies have achieved. This wasn't hype-driven valuation inflation; this was real, repeatable revenue from thousands of paying customers generating videos daily.
The company expanded globally, with 400 employees across London, New York, Copenhagen, Amsterdam, Zurich, and Munich. Over 60% of Fortune 100 companies adopted the platform for internal training, marketing, and corporate communications. Synthesia transformed from a "cool AI demo" into enterprise infrastructure.
The Unmet Founder Pain Point This Reveals
Here's what Synthesia's journey exposes about the startup ecosystem: there's no product to help founders navigate the idea desert efficiently. Synthesia spent 36 months partly because they were inventing the category, but also because no tool helped them systematically test use cases, track cohort retention, or simulate PMF signals in real-time. They had to learn through expensive iteration.
Founders pay advisors $2K-10K to guide them through this desert. They pay accelerators $50K+ for mentorship on pivots. Yet no specialized SaaS exists to track PMF signals, flag use-case viability early, or automate customer discovery at scale. This is the gap.
The Lessons Victor Riparbelli Crystallized
By 2025, Victor had crystallized Synthesia's philosophy around product obsession. His advice to founders: prioritize utility over novelty. Build for the absolute highest value of the product today, not in six months or two years. Work backwards from customer problems, not from technology enthusiasm. Avoid innovation potholes—the seductive but useless features that feel innovative but solve nothing.
He also emphasized that the best investors are those who already share your vision. Instead of wasting energy convincing skeptics, double down on believers who understand the technology and can evaluate your execution. Mark Cuban's early investment wasn't just capital; it was validation from someone who truly grasped the vision.
The Uncomfortable Truth
Synthesia's 36-month desert wasn't a flaw in their execution—it was largely unavoidable. Co-COO Steffen Tjerrild admits: "I think we probably could have done it maybe six to nine months quicker, but not much more than that. It was literally a technical breakthrough we needed. We were the only company in the world that could do that at the time."
What could have accelerated the journey: better early use-case validation, faster feedback loops on retention metrics, and tools to simulate market size across different verticals without endless customer calls.
What This Means for Pre-Seed Founders Today
If you're in months 6-18 of your startup and feeling the weight of the desert, Synthesia's path should both inspire and humble you. Inspiration because they proved that three years of "no" leads to an explosive "yes" when you nail it. Humility because that timeline was with a world-class team and a vision-aligned investor.
The gap Synthesia's journey reveals is the lack of founder-centric tools that compress the idea-to-fit cycle. Creators Takeover has already tapped into this by helping founders structure their business plans. But the next frontier is deeper: automated customer discovery frameworks, cohort retention simulators, and use-case validation tools that let founders test assumptions in weeks instead of months.
Synthesia reached $2.1B not by avoiding the desert—but by walking through it with conviction, listening obsessively, and doubling down ruthlessly when something worked. In 2025, the question for new founders isn't whether you can avoid the desert. The question is: can you navigate it faster?