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model-compatibility

Detail ComfyUI model compatibility requirements for SD 1.5, SDXL, Flux, SD3, and LTXV.

530|85|Updated Feb 15, 2026
Search Tags:#workflow#lora#comfyui#stable diffusion#controlnet#model compatibility#vae
One-click install
npx skills add https://github.com/artokun/comfyui-mcp --skill model-compatibility
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: model-compatibility
Source: https://github.com/artokun/comfyui-mcp/tree/main/plugin/skills/model-compatibility
Command: npx skills add https://github.com/artokun/comfyui-mcp --skill model-compatibility

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps users understand and manage the complex compatibility requirements between different Stable Diffusion model families, ControlNets, LoRAs, and VAEs within ComfyUI.

Core Features & Use Cases

  • Model Family Matrix: Provides detailed configuration parameters, workflow patterns, and compatibility notes for SD 1.5, SDXL, Flux, SD3, and LTXV (video) models.
  • Component Compatibility: Clearly outlines which LoRAs, ControlNets, and VAEs work with which model families, preventing common errors.
  • Use Case: A user wants to apply an SD 1.5 LoRA to an SDXL workflow. This Skill would immediately inform them that this is not possible and guide them towards finding an SDXL-compatible LoRA.

Quick Start

Explain the compatibility between SD 1.5 LoRAs and SDXL models.

Frequently Asked Questions about model-compatibility

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Can I use an SD 1.5 LoRA with an SDXL model in ComfyUI?▼

No, SD 1.5 LoRAs are not compatible with SDXL models in ComfyUI. You must use an SDXL-compatible LoRA to prevent workflow errors and apply the correct cross-family compatibility rules.

What sampler and scheduler should I use for Flux models?▼

Flux models require specific sampler and scheduler configurations. This compatibility matrix provides the correct samplers, schedulers, and CFG settings required for Flux workflows to generate images properly.

Do I need a separate VAE for SDXL and SD 1.5 Stable Diffusion workflows?▼

SDXL and SD 1.5 have distinct VAE compatibility requirements. This matrix specifies which VAEs work with each Stable Diffusion model family to prevent decoding errors during image generation.

How do I configure ControlNet for different Stable Diffusion models in ComfyUI?▼

Configuring ControlNet requires matching the ControlNet to the specific model family. This matrix outlines cross-family compatibility rules for ControlNets across SD 1.5, SDXL, Flux, SD3, and LTXV.

What are the VRAM requirements for running LTXV video generation models?▼

LTXV video generation models have specific VRAM requirements for stable execution. This compatibility matrix details the exact VRAM, resolution, and loader configurations needed for LTXV workflows.

Why does my ComfyUI workflow fail when applying an SD 1.5 embedding to an SDXL model?▼

SD 1.5 embeddings are not cross-compatible with SDXL models due to different text encoder architectures. This matrix specifies which embeddings and CLIP text encoders work with each model family.

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