Stem Studio by @uniqornate is an open-source audio editing tool built for Comfy's #OpenSourceHiggsfield challenge. It separates sounds, removes unwanted background music and lets you paint new soundscapes directly onto your timeline.
Results and limits
The creator's demo music was generated with Yue-2 in ComfyUI, split with Stem Studio and finished in Ableton Live; the video was made with MiniMax H3 and upscaled to 4K with the LTX-2.5 Upscaler/Refiner.
Open-H3-Regenerate-2K-IC, released on 9 November 2026 by the NVlabs SoL-Engine team, is an in-context LoRA for MiniMax H3 that regenerates a low-resolution draft at 1080p, 2K or 4K in 3, 4 or 8 steps. It is an open alternative to MiniMax's H3-Regenerate-2K, which is only a hosted API, and it keeps the draft in context so faces, lip sync, text and layout stay as they were.
Tencent WeChat Vision's WeVisOne-VL, an Apache-2.0 vision model in 2B and 4B sizes, runs natively in ComfyUI since 9 November 2026, when kijai's pull request was merged. A single Detect node takes an image and a phrase and returns boxes, per-instance alpha mattes, masks, points, counts or OCR boxes, without SAM or custom nodes.
ZONOS3-Mini, released by Zyphra on 9 November 2026, is a compact open text-to-speech model with voice cloning and voice design, under the Apache 2.0 licence. It has 800 million parameters with about 100 million active per token, and runs in real time in a browser through WebGPU, on laptops and on phones.
Fizgig is a free, Apache-2.0 LoRA and fine-tune studio for image, video and music models such as Krea 2, MOSS-Image, Qwen Image 2.1, FLUX Klein, MiniMax H3 and ACE-Step. Version 9.2, released on 8 November 2026, moves to PyTorch 2.15 and a faster Muon optimizer step, so a MOSS-Image LoRA on an RTX 5090 trains in about 20 minutes instead of 49 with likeness unchanged.
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