Does OpenMontage need a paid video model?

OpenMontage runs end-to-end on local open-source models — WAN 2.1, Hunyuan, and CogVideo — so no paid API calls are required. The system also includes a documentary pipeline that stitches free archival footage from NASA and Archive.org for projects that need real video rather than generated frames.

Which AI coding assistants does OpenMontage support?

OpenMontage works as a tool layer for any AI coding assistant that can call CLI tools, including Claude Code, OpenAI Codex, Cursor, and Gemini CLI. The assistant becomes the creative director, picking which of the 12 pipelines and 52 tools to invoke for each step of the project.

How does OpenMontage compare to Sora or Veo?

OpenMontage is not a single video model — it is an orchestration framework that drives smaller open-source models through scripting, asset generation, editing, narration, and quality control. Sora and Veo generate clips end-to-end from a prompt; OpenMontage instead delegates each stage to the best local provider and stitches the result.

What is the license and can OpenMontage be used commercially?

OpenMontage is released under the GNU AGPL-3.0 copyleft license. Commercial use is allowed, but any derivative service that ships the code over a network must release its modifications back to users under the same terms — a restriction that does not apply to permissive licenses like MIT or Apache-2.0.

Does OpenMontage handle narration and subtitles?

OpenMontage includes offline text-to-speech via Piper plus built-in subtitle generation, so a finished video can be narrated and captioned without external APIs. A scoring engine ranks available providers across seven dimensions for each step, falling back to the next option when one fails.

calesthio · 2026-06-22 · major

OpenMontage — AGPL agentic video studio for AI coding assistants

OpenMontage is an open-source agentic video production system that turns Claude Code, Codex, or any AI coding assistant into a full video studio with 12 pipelines, 52 tools, and 500+ skills.

OpenMontage agentic video production system on GitHub

An agentic video studio that turns any AI coding assistant into a producer, editor, and renderer.

Key specs

Stars (3 days)	16.9K
Pipelines	12
Tools	52
Agent skills	500+

Quick facts

Maker	calesthio (independent)
License	AGPL-3.0
Language	Python
Pipelines	12 production workflows
Tools	52 editing and rendering tools
Agent skills	500+ specialized capabilities
Cost	Free — runs on local models

What is it?

OpenMontage ships 12 production pipelines, 52 tools, and 500+ agent skills as a single AGPL-3.0 framework that AI coding assistants can call to make videos. The assistant takes a plain-text concept and walks each pipeline — research, script, asset generation, editing, rendering — without paid APIs.

How does it work?

Each pipeline is a graph of skills that the agent invokes through tool calls, and a scoring engine ranks providers across seven dimensions per step. Local models like WAN 2.1, Hunyuan, and CogVideo handle generation, Piper does text-to-speech, and automated self-review stages check frame integrity and audio levels before final render.

Why does it matter?

OpenMontage breaks the link between agentic video and subscription generators. The same coding assistant developers already pay for can now produce a finished, narrated, captioned video on local hardware — and a separate documentary pipeline edits free archival footage from NASA and Archive.org for projects that need real video instead of generated frames.

Who is it for?

Indie creators, agentic-app builders, and AGPL-friendly studios

Frequently asked questions

Does OpenMontage need a paid video model?: OpenMontage runs end-to-end on local open-source models — WAN 2.1, Hunyuan, and CogVideo — so no paid API calls are required. The system also includes a documentary pipeline that stitches free archival footage from NASA and Archive.org for projects that need real video rather than generated frames.
Which AI coding assistants does OpenMontage support?: OpenMontage works as a tool layer for any AI coding assistant that can call CLI tools, including Claude Code, OpenAI Codex, Cursor, and Gemini CLI. The assistant becomes the creative director, picking which of the 12 pipelines and 52 tools to invoke for each step of the project.
How does OpenMontage compare to Sora or Veo?: OpenMontage is not a single video model — it is an orchestration framework that drives smaller open-source models through scripting, asset generation, editing, narration, and quality control. Sora and Veo generate clips end-to-end from a prompt; OpenMontage instead delegates each stage to the best local provider and stitches the result.
What is the license and can OpenMontage be used commercially?: OpenMontage is released under the GNU AGPL-3.0 copyleft license. Commercial use is allowed, but any derivative service that ships the code over a network must release its modifications back to users under the same terms — a restriction that does not apply to permissive licenses like MIT or Apache-2.0.
Does OpenMontage handle narration and subtitles?: OpenMontage includes offline text-to-speech via Piper plus built-in subtitle generation, so a finished video can be narrated and captioned without external APIs. A scoring engine ranks available providers across seven dimensions for each step, falling back to the next option when one fails.

Try it

git clone https://github.com/calesthio/OpenMontage