Synthesia, which uses AI to create virtual avatars, raises a $50M Series B led by Kleiner Perkins, bringing its total funding to $66.5M
Synthesia, a company leveraging AI to generate videos of avatars, today announced that it raised $50 million in a series B round, bringing its total raised to $66.5 million.
Context & Ripple Effects
In December 2021, Synthesia closed a $90M Series C precursor — a $50M Series B led by Kleiner Perkins, taking total funding to $66.5M. The round landed just as Kleiner Perkins was deploying its freshly raised $3.5B, including a $2.5B growth fund aimed squarely at AI startups, making Synthesia an early test of that thesis.
The arc since then validates it: the company went on to raise a $180M Series D at a $2.1B valuation in January 2025, drew acquisition talks with Adobe at roughly $3B that October, and by January 2026 had closed a $200M Series E led by GV at $4B — a valuation trajectory that began with this Series B check.
First-order effects
- Kleiner Perkins converts its AI-targeted growth fund into a marquee position in enterprise video generation, giving Synthesia the runway to move past its $16.5M of earlier funding.
- Synthesia gains the capital to scale its avatar-video product for corporate customers, the segment that now drives its training and internal-communications usage.
Second-order effects
- The funding cadence this round set up — Series C at $1B, Series D at $2.1B, Series E at $4B — put Synthesia on acquirer radar sheets, culminating in Adobe's reported ~$3B talks.
- Rivals in AI video generation faced a competitor whose enterprise footprint grew to more than 70% of the Fortune 100, forcing them to compete against a company with nine-figure ARR rather than a scrappy startup.
Third-order effects
- If the pattern holds, enterprise AI video consolidates around a small set of heavily capitalized platforms, with late-stage funds like GV stepping in once early backers such as Kleiner Perkins have marked up their positions across four subsequent rounds.
- The Series B-to-Series E ladder also illustrates the emerging AI capital cycle: revenue milestones ($58M in 2024 growing 82% YoY, $100M ARR by April 2025) arriving alongside persistent losses ($59M pre-tax), keeping valuations dependent on continued fundraising.
The trend: Enterprise AI avatar startups are compounding through successive mega-rounds, with each funding milestone converting early venture bets into multi-billion-dollar platform valuations.