OpenMontage
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No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
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Open-source agentic video production: give it a brief and materials, and agents research, script, storyboard, narrate, score and render an editable video. No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
Product preview

Overview
OpenMontage takes a brief and whatever materials you have, and runs a production pipeline: research, script, storyboard, narration, music, composition, and a finished video delivered as an editable project rather than a locked render. It runs inside the coding agents people already use — its page lists Claude Code, Codex and OpenCode — and is open source.
The choice to return an editable project is the interesting one. Generative video tools generally hand back a file, and the file is the end of your involvement: to change one shot you re-run the generation and accept a different video. An agentic pipeline that produces an editable timeline instead treats the output as a draft someone will finish, which matches how video is actually made and puts the tool on the side of the editor rather than replacing them. It also means the value depends on how the agent handles materials it did not create, since most real work starts from existing footage, and that is not something a demo reel demonstrates.
Sources
The factual claims in this review were read from the pages below. Each date is when an editor last opened the source, not when the product changed.
- Vendor site Checked 2026-09-19
- Vendor documentation Checked 2026-09-19
Pros / Cons
Pros
- Returns an editable project rather than a locked render, so a person finishes it
- Runs inside coding agents rather than requiring a separate interface
- Open source
Cons
- How it handles footage it did not create is what decides its value, and demos do not show that
- Cost of the underlying model and media generation is separate and was not assessed
- Nothing was produced here, so output quality is untested
Who it's for
Turning a brief and existing footage into a first cut
Producing explainer or social video from documents
Automating the assembly stage of video production
Generating a narration and storyboard to edit from
Bottom line
Agentic video production that hands back a draft an editor finishes — the value is in the editable output, not in the automation.
Key Features
Tags
Frequently asked questions
Is OpenMontage currently available?
No lifecycle review is recorded for this listing. Its inclusion in the directory does not confirm current availability; check the vendor before relying on it.
What is OpenMontage?
OpenMontage is a Video Generation tool developed by OpenMontage. Open-source agentic video production: give it a brief and materials, and agents research, script, storyboard, narrate, score and render an editable video.
Is OpenMontage free?
Yes — OpenMontage is free to use.
Is OpenMontage open source?
Yes — OpenMontage is open source. The source code is publicly available at https://github.com/calesthio/OpenMontage.
What are the best alternatives to OpenMontage?
Notable Video Generation alternatives include Runway, HeyGen, Pika. Browse all 58 tools in our Video Generation category for a full overview.
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Basic Info
- Pricing
- Free
- Editorial score
- ★ 3.9 / 5 How we score
- Platforms
- CLILibrary
- Last verified
- Not recorded