London-based Synthesia has officially closed a $200 million Series E funding round. Now valued at $4 billion, the platform is pivoting from simple video creation toward sales enablement conversational AI. This move could signal a shift in how enterprise organisations handle upskilling.
Sales leaders can struggle to keep distributed teams trained on rapidly changing products and pricing. Consequently, Synthesia is positioning its technology as the ultimate solution for knowledge retention.
From Static Video to Sales Conversation
Previously, Synthesia’s core value proposition was generating AI training videos without the need for cameras or actors. While this was revolutionary, it remained a passive experience for the user. However, this $200 million raise funds the development of “conversational agents.” Instead of merely watching a video, sales teams can now interact with an AI that answers product questions and conducts role-play scenarios.
Victor Riparbelli, Synthesia’s CEO, notes that upskilling has become a board-level priority. After all, traditional onboarding programmes often fail because they are time-intensive and quickly become outdated. Therefore, by using sales enablement conversational AI, firms can provide tailored explanations based on a rep’s specific knowledge gaps.
He says: “Synthesia was founded on two core beliefs: first, that AI will bring the cost of content creation down to zero. And secondly, that AI video provides a better, more engaging way for organisations to communicate and learn. This funding round is about scaling that vision. We see a rare convergence of two major shifts: a technology shift with AI Agents becoming more capable, and a market shift where upskilling and internal knowledge sharing have become board-level priorities. We intend to build the defining company at that intersection, by combining our know-how in AI video with our ability to build and integrate AI technologies into products and services that solve real business needs.”
Closing the 28% Selling Gap
The market opportunity here is substantial. Gartner estimates that B2B sales teams spend only 28% of their time actually selling. The rest of their day is consumed by searching for information or administrative tasks.
By integrating sales enablement conversational AI, organisations could compress the time required to find answers. For instance, rather than digging through a 50-page PDF, a rep could arguably ask the agent: “How does our new pricing tier compare to Competitor X?” The agent then provides a contextual, role-play-ready response in seconds.
What This Means for Sales Leaders in 2026
For heads of sales enablement, Synthesia’s move signifies the direction of travel. The era of static content libraries is ending. Instead, we are moving toward interactive systems that provide immediate answers during actual selling situations.
However, adoption barriers remain. Sales teams already navigate multiple platforms like CRM and conversation intelligence tools. Therefore, sales enablement conversational AI must be integrated into existing workflows rather than existing as a standalone “destination.” Furthermore, organisations must decide who maintains the underlying knowledge base to ensure the AI does not “hallucinate” based on outdated pricing.
Synthesia’s $4 billion valuation proves that there is a massive appetite for AI applications with a clear ROI. By combining video expertise with conversational intelligence, they are attempting to define a new category of “organisational learning.” For UK companies, this success establishes a reference point for growth. It shows that British AI firms can compete globally in categories traditionally dominated by the US.
