Infinity.ai (LemonSlice) is a 2026 AI avatar creation platform that turns a single photo into lifelike, interactive talking video avatars with natural expressions, lip-sync, gestures, and emotions. Users upload one image, add script/text, customize voice/style (realistic/cartoon), and generate expressive videos for marketing, education, social content, virtual spokespersons, or storytelling. Fast generation, high realism in motion/emotion synthesis, privacy-focused—no training data storage. Freemium model with paid credits for longer/higher-quality outputs—ideal for creators, brands, educators needing quick personalized video avatars without filming.