Looking for feedback: AI-assisted video editing tool idea (validation phase, no promotion)

I’ve had a project idea in mind for a while and recently started building it. Before I go too deep into the details, I wanted to do some idea validation.

The concept is an AI-assisted video editing application. What makes it different from existing tools is this: instead of extracting speech from the video itself, you provide the full spoken content as a separate audio file.

The app analyzes that audio and determines what is being said at each timestamp. Then, you upload a set of images and video clips related to the content, along with short descriptions. You can also optionally mark your favorite timestamps.

Based on these descriptions, the AI matches your media files with the corresponding parts of the speech, cuts and assembles them, adds transitions, and generates subtitles synced with the audio. The output is a ready-to-post social media reel (I’m planning to support longer formats later).

The goal is not to generate generic “AI slop,” but to edit your own content—maybe a bit rough at first, but improvable over time.

My questions:

• Do you see yourself (or others) using something like this for social media content creation?
• Compared to existing tools, would this offer enough value to switch?
• I know it’s somewhat purpose-specific—do you think the use case is too narrow?

Also, combining multiple voice-based clips could be added later as a separate pipeline.

Would love to hear your thoughts.