# How to Use LoRAs in ComfyUI in 2026: Load, Stack, and Troubleshoot

> Published 2026-07-01 · https://www.promptzone.com/tara_suzuki/how-to-use-loras-in-comfyui-in-2026-load-stack-and-troubleshoot-235e

---
title: How to Use LoRAs in ComfyUI in 2026: Load, Stack, and Troubleshoot
published: true
description: How to use LoRAs in ComfyUI in 2026 — add the Load LoRA node, set strengths, stack multiple LoRAs, and fix the two mistakes that make LoRAs do nothing.
tags: ai, imagegen, comfyui, lora
---

**Short answer (2026):** Drop your LoRA files in `ComfyUI/models/loras`, add a **Load LoRA** node between your model loader and the CLIP/sampler, and set `strength_model` / `strength_clip`. To stack, chain multiple Load LoRA nodes (or use the **Efficiency Nodes LoRA Stacker**). Two gotchas cause 90% of "my LoRA isn't working": using a LoRA from the **wrong base model**, and forgetting the LoRA's **trigger word**.

- **Where files go:** `ComfyUI/models/loras`
- **The node:** Load LoRA (Add Node → Loaders → Load LoRA)
- **Stacking:** chain nodes, or the LoRA Stacker from Efficiency Nodes
- **#1 fix:** match the LoRA to your base model + include its trigger word

## Step-by-step

1. **Place the LoRA** `.safetensors` in `ComfyUI/models/loras` — ComfyUI auto-detects it.
2. **Add the Load LoRA node:** double-click the canvas and search "Load LoRA," or right-click → Add Node → Loaders → Load LoRA.
3. **Wire it in:** put the node **between the diffusion model and the CLIP/sampler**. Connect model→model and clip→clip through the LoRA node, then onward to your KSampler.
4. **Pick the LoRA** in `lora_name` (reads from `models/loras`).
5. **Set strengths:** `strength_model` and `strength_clip` control how strongly it affects the image and the prompt understanding. Start around **0.6–0.8**.
6. **Add the trigger word** to your prompt (see below), then generate.

## Stacking multiple LoRAs

Two ways:

- **Chain Load LoRA nodes** — the model+clip output of the first feeds the input of the second, and so on into the KSampler.
- **LoRA Stacker (Efficiency Nodes)** — a single node where you load several LoRAs and set each strength. Cleaner for 2–3+ LoRAs.

Keep it disciplined: **2–3 LoRAs max, each 0.4–0.8, total under ~2.0** — beyond that they fight. For a full realism stack, see our [best Flux LoRAs guide](https://promptzone.com/rebecca_patel_bba79f92/best-flux-loras-in-2026-for-realism-and-how-to-stack-them-1mck).

## The two mistakes that make a LoRA "do nothing"

1. **Wrong base model.** LoRAs are **not** interchangeable — an SD 1.5 LoRA won't work on an SDXL checkpoint, and neither works on Flux. Match the LoRA to your base model.
2. **Missing trigger word.** Many LoRAs need a specific activation keyword. No trigger in the prompt → the LoRA just sits there. Check the LoRA's Civitai/Hugging Face page for its trigger.

Not set up with ComfyUI + Flux yet? Start with the [install Flux in ComfyUI guide](https://promptzone.com/rebecca_patel_bba79f92/how-to-install-flux-in-comfyui-in-2026-fp8-and-gguf-workflow-guide-3ni1).

## Frequently asked questions

### Where do I put LoRA files in ComfyUI?
In `ComfyUI/models/loras`. ComfyUI auto-detects them, and they appear in the Load LoRA node's `lora_name` dropdown.

### How do I stack multiple LoRAs in ComfyUI?
Chain multiple Load LoRA nodes in series (model+clip out → next node's in), or use the LoRA Stacker node from the Efficiency Nodes pack. Keep to 2–3 LoRAs with a combined strength under ~2.0.

### Why is my LoRA not doing anything?
Two usual causes: the LoRA is for a different base model (SD1.5 vs SDXL vs Flux — they're not interchangeable), or you're missing the LoRA's trigger word in the prompt.

### What's the difference between strength_model and strength_clip?
`strength_model` controls how strongly the LoRA changes the image generation; `strength_clip` controls how strongly it changes prompt interpretation. Most people set them equal (0.6–0.8) to start.

## Conclusion

LoRAs in ComfyUI are simple once you know the pattern: right folder, Load LoRA node wired between model and sampler, sane strengths, correct base model, and the trigger word. Stack 2–3 for compound effects. What's in your go-to LoRA stack? Share below.

## Sources
- [ComfyUI Docs — LoRA Example](https://docs.comfy.org/tutorials/basic/lora)
- [ComfyUI Wiki — Install & Use LoRA Models](https://comfyui-wiki.com/en/install/install-models/install-lora)
- [ThinkDiffusion — ComfyUI LoRAs Ultimate Guide (Civitai)](https://civitai.com/articles/6831/comfyui-loras-the-ultimate-guide-by-thinkdiffusion)