Descript unveils an agentic video editor dubbed the 'Cursor for video'

Cursor changed how engineers write software, and now Descript wants to do the same for video creators.

Descript founder Andrew Mason just announced that the company is going all-in on AI agents, unveiling an "agentic video editor" that he explicitly called "Cursor for video." The new tool, dubbed Underlord, has opened sign-ups for early access.

A true agentic workflow for video

Descript originally made waves by letting creators edit audio and video just by editing text transcripts. With Underlord, the team appears to be shifting from direct manual editing to an agentic collaboration model.

While Mason hasn't shared full workflow demos yet, the Cursor comparison says a lot. Instead of manually slicing clips, syncing b-roll, or adjusting pacing on a traditional timeline, the editor relies on an AI agent that takes instructions and carries out multi-step editing tasks right inside the project.

Why it matters

Descript is setting sky-high expectations by comparing itself to Cursor, but it is precisely the direction creative software needs to take.

For creators, rough cuts, cleanup, and formatting eat up most of production time. If an agent can handle the mechanical grunt work while keeping the human in control of creative intent, it could drastically shorten turnarounds.

The real challenge, in our view, is that video editing is far more subjective than coding. A compiler tells an agent if code works, but pacing, tone, and comedic timing can't be debugged with a terminal. How well Descript balances agent autonomy with granular creative control will determine whether this becomes an indispensable tool or just a fancy gimmick.