60s of AI video fully local on an RTX 3050 6GB, via MiniMax H3 and a Python pipeline
No_Cow26 · reddit · 2026-11-11
A Reddit user generated 60 seconds of AI video 100% locally on an RTX 3050 (6GB VRAM) in about 6 hours 35 minutes — a work in progress with soft detail and some flicker.
- Model: MiniMax H3 reference-to-video via ComfyUI's native H3 nodes, int8 quantized model and Qwen3-VL text encoder; character consistency came from two reference images reused across all shots (the still shows a Harry Potter–style library scene).
- Prompts: Official six-section reference prompt format (subject definitions, summary, retention analysis, detailed description, soundscape, music); no negative prompts, as H3 doesn't use them.
- Shots: Six shots of 260 frames (10.8s) at 864×480, 25 steps, resmultistep sampler with simple scheduler.
- Continuity: Each shot starts from the last 22 frames and audio of the previous one via the MiniMaxH3AddGuide node at frame 0.
- Automation: A Python script submits shots to ComfyUI's API, trims the 22-frame overlaps, and encodes one 60-second MP4 with audio.
Related event: User Generates 60-Second AI Video Fully Locally on RTX 3050 6GB(2 posts)→
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