In the "Built with AssemblyAI" series, innovative projects and products made using the AssemblyAI Speech-to-Text transcription API are showcased. One such project is YouTube Transcripts, a Chrome extension that enables users to generate video transcripts within YouTube Studio quickly. The inspiration behind this product came from the need for fast transcription services at a reasonable price. Unique features include embedding directly into YouTube studio and having an efficient workflow. AssemblyAI's Core Transcription, Paragraph Detection, and Confidence Scores are utilized in the product. The developer chose to build with AssemblyAI due to its accuracy, affordability, and ongoing feature development. A demo video is available, and interested users can sign up for a free API key to try the extension themselves.