ComfyUI Tutorial Series Ep 51: Nvidia Cosmos Predict2 Image & Video Models in Action

In episode 51 of the ComfyUI tutorial series, we take a detailed look at NVIDIA Cosmos Predict 2 models for both image and video generation. Learn how to set up the workflow in ComfyUI, download and organize the required models, and generate high-quality outputs using the 2B base version or larger GGUF variants like Q4 and Q8.

This episode covers both text-to-image and image-to-image workflows, how to manage denoise settings, and how to use helper tools like resolution calculators and image scaling nodes for better results. We also test out the video generation workflow, starting from an image and creating short video clips using the "video-to-world" node.

You'll see side-by-side comparisons of Cosmos 2B, 14B Q4/Q8, and popular models like Flux Dev, along with insights on which model performs better for different styles — including anime, oil painting, cartoon renders, and realism.

📌 What you’ll learn:
How to update ComfyUI for Cosmos support
Setup for text-to-image and image-to-image workflows
Using Cosmos models in GGUF format
Running the video generation workflow
Model comparison: Cosmos vs Flux for different styles

📂 Workflows mentioned in the video are available for free download on the Pixaroma Discord. Here -   / discord  
After you joined discord you can access this direct link to find all the workflows for this video   / discord  

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Cosmos Models
https://huggingface.co/Comfy-Org/Cosm...

GGUF Version Models
https://huggingface.co/calcuis/cosmos...

Download oldt5_xxl_fp8_e4m3fn_scaled.safetensors from https://huggingface.co/comfyanonymous...

Download wan_2.1_vae.safetensors model from https://huggingface.co/Comfy-Org/Wan_...

Read more on the Comfy Blog https://blog.comfy.org/p/cosmos-predi...

Cosmos Documentation
https://docs.comfy.org/tutorials/imag...

#comfyui #comfyuitutorial #imagegenerator
Chapters
00:00 Introduction
00:14 Cosmos 2B text2img workflow setup
04:11 Cosmos 2B img2img workflow setup
07:07 Cosmos 14B GGUF Workflow
09:16 Cosmos 2B vs 14B Q4 GGUF vs 14B Q8 GGUF
11:11 Cosmos 14B Q8 vs Flux Dev Q8
13:01 Cosmos Video model - video2world