# Mosaic: Agentic video editing with a human finishing pass

Canonical: https://thelazyweb.com/companies/mosaic/
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Author: Ali Abouelatta (https://thelazyweb.com/authors/ali-abouelatta/)
Published: 2026-09-19
Updated: 2026-09-19
Research type: Company profile
Method: Company and accelerator sources checked 2026-09-19. Product claims are attributed to their sources; this is research, not a hands-on product trial.

Mosaic is an agentic video-editing canvas for turning raw footage into repeatable edits and variants. It fits a creator, media or marketing team that wants automation to handle the first large pass while keeping a familiar editor for the final taste and polish.

## What it does

[Mosaic’s current product description](https://mosaic.so/) presents a canvas where video-editing agents can run on autopilot, create multiple variants from the same footage and then hand the result to a timeline editor. [The YC profile](https://www.ycombinator.com/companies/mosaic-2) says the company is trying to encode the language of video and give that taste to agents.

The product history explains the interface choice. The founders say they first built a chat copilot, then found prompt-response UX too sequential for video. They moved to a node-based canvas where a team can create and run multimodal editing agents, then use chat and the editor for final touches. The launch describes the agent getting a project 80–90% of

[Mosaic: Agentic video editing with a human finishing pass](<https://www.thelazyweb.com/companies/mosaic/>)

Source observed: 2026-09-20T02:21:48.220Z. Last checked: 2026-10-08T01:58:17.314+00:00.

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