Synthesia has partnered with Cinder, a moderation-infrastructure firm, to strengthen its pre-generation content screening. Rather than detecting policy violations after the fact, Synthesia evaluates every script before any video is rendered. Cinder adds an AI agent that makes a second pass on each moderation decision, escalating edge cases to human reviewers whose actions retrain the system. In 2025, Synthesia's automated tooling reviewed over 11.5 million content pieces, with automated volume growing 77% year-on-year while items reaching human reviewers fell. The company frames safety as a commercial differentiator for its enterprise customer base, which includes over 60% of the Fortune 100. An independent test by Belgian broadcaster RTBF confirmed Synthesia blocked deepfakes, propaganda, and scam content that rival platforms generated freely.
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