Castmagic is an AI-powered content operating system that transforms audio and video files into a structured library of derivative content assets. Creators upload a podcast episode, webinar, or sales call and the platform automatically produces transcripts, show notes, chapter timestamps, blog drafts, email newsletters, social media posts, and dozens of other formats in minutes.
The product is built around a workflow editor where users chain AI prompts and templates against the underlying transcript, letting agencies and content teams codify their repurposing playbooks and run them across an entire content library. Castmagic supports speaker diarisation, multi-language transcription, and integrations with platforms like Notion, Google Drive, and Zapier.
Castmagic was co-founded in early 2023 by Blaine Bolus, Ramon Berrios, and Justin Tan, and is based in Miami Beach, Florida. Bolus, who previously co-founded the restaurant-reservation startup Seated, also hosts the DTC Pod podcast and uses the company's own product as a flagship workflow example.
The company has remained bootstrapped, choosing not to raise institutional venture capital. Press coverage and founder interviews indicate Castmagic crossed $1 million in annual recurring revenue within roughly a year of launch and reached approximately $2 million in ARR shortly after, driven largely by individual creators, agencies, and B2B content teams.
Castmagic competes with tools like Descript, Riverside Magic Clips, Opus Clip, and Podsqueeze, but differentiates through its breadth of structured output formats and emphasis on agency-style content repurposing rather than pure video editing or short-form clipping.