A 3.5-minute music video from Opus 5.5 + open models on one 3090, workflows included
onil_gova · reddit · 2026-09-30
Technical breakdown of the AlexNet birthday video: the author produced the full 3.5-minute piece on a single RTX 3090 using Qwen-Image 2.1, LTX-2.3 and InfiniteTalk, with all workflows open-sourced.
- Every image and clip ran through ComfyUI's API from scripts, strictly one job at a time; API graphs live in video/workflows/
- qwen21editapi. for plates and targeted fixes (max 2 reference images); qwen21removebgapi. for sticker cutouts
- ltx23i2vapi.: LTX-2.3 22B Q4KM GGUF + distilled LoRA + x2 latent upscaler at 1080p
- infinitetalksingleapi.: Wan 2.1 I2V 14B + InfiniteTalk + lightx2v LoRA
- Stability tip: --reserve-vram 3 --disable-smart-memory cut peak VRAM from 22.9GB to 16.1GB, plus a queue script to keep heavy jobs from overlapping
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