Basic idea
Visual generative AI lets you create photorealistic images and coherent video clips from text (and image) prompts — with creative control that cloud generators often limit. Running these workflows locally on your hardware platform keeps assets under your control, avoids per-token cloud costs, and shortens the iteration loop that real creative projects need.
ComfyUI is an open-source, node-based app for advanced image and video generation. You install it, load templates for models such as FLUX.2 and LTX-2, download model weights on demand, and build or save workflows as reusable graphs.
- Local creative control — refine prompts and graphs at your own pace without cloud round-trips
- Template-first start — Getting Started and All Templates paths cover text-to-image and image-to-video
- VRAM-aware model choices — pick precision and settings that fit your GPU memory
What you'll accomplish
You'll install ComfyUI on your hardware platform, run a starter text-to-image workflow, generate images with FLUX.2-Dev, generate video with LTX-2, and optionally combine both into one custom workflow.
What to know before starting
Required:
- Comfort installing and launching desktop applications on your hardware platform
- Enough free disk space for large model weight downloads (tens of GB per model)
Optional:
- Familiarity with generative AI prompting (subject, framing, style, mood)
- Experience with node-based tools or graph editors
Supported hardware platforms
Use the matrix below to confirm your hardware platform, recommended default local settings, and whether multi-node applies.
| Hardware platform | OS | Memory | Recommended default local settings | Multi-node capable hardware |
|---|
| GeForce RTX | Windows (ComfyUI desktop / portable); Linux paths noted for outputs | Dedicated VRAM (size varies by GPU) | ComfyUI from comfy.org · starter text-to-image template · FLUX.2-Dev · LTX-2 Image to Video · prefer lower-precision weights that fit your VRAM | — |
| RTX PRO | Windows (ComfyUI desktop / portable); Linux paths noted for outputs | Dedicated VRAM (size varies by GPU) | ComfyUI from comfy.org · starter text-to-image template · FLUX.2-Dev · LTX-2 Image to Video · prefer lower-precision weights that fit your VRAM | — |
Prerequisites
Hardware requirements
- Supported hardware platform — see Supported hardware platforms matrix above
- Enough GPU memory for the model and resolution you choose (frontier video models need more VRAM as resolution, length, and steps increase)
- Enough storage for ComfyUI plus model weights (individual models can exceed 30 GB)
Software requirements
- Network access to download ComfyUI and model weights (for example from Hugging Face via ComfyUI’s download dialog)
- A web browser (ComfyUI UI and optional image preview)
- For the Windows install path in Instructions: use the ComfyUI download from comfy.org
Time & risk
- Estimated time: 13 MIN for install and first starter image; longer on first run of FLUX.2 or LTX-2 while model weights download
- Risk level: Low to Medium
- Large model downloads can fail on unstable networks
- High resolution, frame count, or step counts can exhaust GPU memory or slow generation sharply
- Rollback: Quit ComfyUI and uninstall or delete the ComfyUI install folder; delete downloaded model weights and saved workflows you no longer need
- Last Updated: 08/03/2026
- Local ComfyUI workflow for FLUX.2 image and LTX-2 video generation on supported hardware platforms
