Introducing AI form feedback and AI-powered training coach. Flex AI is the world’s first AI personal trainer. The new update (Flex 3.0) introduces real-time AI Form Feedback and Lex—an AI persona that adapts your workout plan, analyzes your lifts, corrects your form instantly, and answers questions about training, recovery, and nutrition.
Flex AI: Your AI Personal Trainer launches
Launch date
Flex AI: Your AI Personal Trainer Introducing AI form feedback and AI-powered training coach.
Launched on November 20th, 2025