Synthesia, an AI video platform, announced a partnership with Cinder to enhance its trust and safety stack for AI video content moderation. This collaboration aims to increase product velocity and improve the handling of new types of harm, which is critical for enterprise customers in regulated industries. The partnership will integrate Cinder's infrastructure to act as a second pass on model decisions and help Synthesia's team build faster against new harm types.
The partnership signals a shift from reactive moderation to preventive, infrastructure-level safety within the generative video stack. For enterprise customers in regulated sectors like finance and defense, this proactive filtering reduces the legal risk of generating non-compliant content. As AI video becomes a primary surface for corporate communication, moving moderation to the pre-rendering stage sets a technical standard for the ecosystem. This approach reduces the operational burden on human review teams while increasing the velocity of product updates and language support. Watch for how this infrastructure handles multi-agent systems and real-time interactive avatars as Synthesia expands its "Video Agents" roadmap.
Synthesia has been scaling its trust and safety operations as generative AI video adoption accelerates across enterprise use cases. The company's moderation volume grew 77% year-over-year, reflecting the rapid expansion of AI-generated video in corporate communications, training, and marketing. Synthesia's partnership with Cinder represents a move toward infrastructure-level content safety that evaluates scripts before rendering frames, positioning the platform to catch harmful outputs like deepfakes and scam content at the point of creation rather than after publication. This pre-generation approach differs from traditional post-publication moderation systems used by most video platforms.
The broader AI video safety landscape has intensified as regulators and enterprises demand stronger guardrails. Synthesia raised $180 million in a Series D round led by NEA in January 2025, valuing the company at $2.1 billion, with CEO Victor Riparbelli emphasizing that the funding would be used to invest further into security and compliance. The valuation makes Synthesia the most valuable generative AI media firm in the UK, according to data from Dealroom cited by the company. Its more than 60,000 enterprise customers include Zoom, Amazon, DuPont, and Xerox.
On the AI safety front, Synthesia conducted a public red team test in October 2024 led by data scientist Rumman Chowdhury under the National Institute of Standards and Technology framework, demonstrating how the firm's compliance controls counter attempts to create non-consensual deepfakes or use its avatars to encourage suicide, adult content, or gambling. Riparbelli told CNBC that Synthesia is seeing increased interest from large enterprise customers, particularly in the U.S., thanks to its focus on security and compliance, a signal that pre-generation moderation infrastructure like the Cinder integration is becoming a competitive differentiator in the enterprise AI video market.
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