Finally, open-source AI video with SOUND! Ovi tutorial
The release of an open-source video generation model with native audio and precise dialogue tagging lowers the barrier to producing synchronized character dialogue offline.
What this lesson covers
This tutorial demonstrates Ovi, a new open-source AI video generator with built-in audio, lip-syncing, and sound effects. It covers online platforms and a step-by-step installation guide for running Ovi locally using ComfyUI.
Key takeaways from the creator
AI-extracted notes, not independently verified product claims. Timestamp links let you check each point in the original video.
- 00:00 ↗
Ovi is an open-source AI video generator that outputs video with built-in audio, including dialogue and sound effects from a text prompt.
- 00:33 ↗
Prompts can specify exact dialogue using start/end tags and control background audio and voice characteristics.
- 02:44 ↗
Ovi supports image-to-video generation, allowing creators to use a reference image as the starting frame.
- 05:03 ↗
ComfyUI can be used to run Ovi locally, offering memory offloading to handle hardware with lower VRAM constraints.
- 06:04 ↗
Running Ovi locally requires a CUDA GPU with at least 16GB to 24GB of VRAM.
Workflow outlined in the video
- Visit the Ovi GitHub repository and project page to review system requirements and local installation guides.
- Clone the ComfyUI workflow repository for Ovi into your ComfyUI custom nodes directory.
- Test text-to-video and image-to-video generation with audio tags either locally or via supported online platforms like fal.ai.
Before you use this workflow
These notes describe the source video at its publication date. Model access, pricing, connectors and interfaces may have changed. Check the original source and the provider’s current documentation before installing an add-on, connecting an account or spending credits.
ReelStack has not independently tested this workflow. Preview one representative shot and check motion, continuity and output quality before applying it to a full production. No result, cost saving or model capability is guaranteed.
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How to interpret the numbers
77,350 views captured 23 October 2026. ReelStack recommendation score: 46/100. Formula: radar-v5. This is ReelStack’s calculation, not a YouTube rating or a measure of factual accuracy.
Show the calculation
- 45% performance: 0.71× views vs 6 other channel videos observed at a similar age. View-evidence factor 99% (views / (views + 1,000))
- 25% freshness: 0/100 with a 14-day half-life
- 20% momentum: 7 views/day vs 1 channel baseline (5 comparable uploads), with the same view-evidence factor
- 10% engagement: 100/100; likes + 4× comments, smoothed with a 500-view neutral prior