ComfyUI: Generate an AI image from a text prompt

ComfyUI Try it →Watch full video →@KevinStratvert · Jun 2026

Demo summary

The video shows the process of entering positive and negative prompts, configuring image dimensions, and clicking 'Run' to generate a chocolate chip cookie image in ComfyUI.

Step-by-step

Load the downloaded model in the first section of the workflow
Enter a positive prompt describing the image you want to create
Enter a negative prompt to specify what the model should avoid
Configure the image dimensions by setting the width and height
Set the number of images you would like to generate
Click Run in the top right-hand corner

Options

Change the seed value to generate different variations of the same image using the same prompt

Tips

As a beginner, leave the sampling section settings at their default values
Use the default image size settings as they work well with the standard model

All demos from “How to Use ComfyUI (Step-by-Step Tutorial)”

1:560:39Load a text-to-image workflow and download missing modelsThe user demonstrates how to load a default text-to-image template in ComfyUI and use the 'show missing models' feature to download required AI checkpoints.ComfyUI· AI Image Generator
2:501:21Generate an AI image from a text promptCurrentThe video shows the process of entering positive and negative prompts, configuring image dimensions, and clicking 'Run' to generate a chocolate chip cookie image in ComfyUI.ComfyUI· Text to Image
4:110:29Manage generated assets in ComfyUIThe presenter demonstrates how to access the assets panel using the 'A' shortcut to view, save, or delete previously generated images.ComfyUI· AI Image Generator
6:141:19Add an image upscaling node to a workflowThe user demonstrates extending a workflow by right-clicking to add an 'Upscale Image' node and connecting the node pins to upscale the output by 2X.ComfyUI· AI Image Upscaler
Watch “How to Use ComfyUI (Step-by-Step Tutorial)” →

Text to Image

7:390:44Basic text-to-image generation in ComfyUIThe user demonstrates a basic text-to-image workflow using the RealVisXL model to generate an image of a castle in a forest.AI Search
22:350:32Generating an image with Flux modelDemonstrates a text-to-image generation using the Flux model in ComfyUI, including prompt entry and resolving connection errors.Sebastian Kamph
20:151:27Text-to-image generation with PiD DIT modelThe creator demonstrates the standalone PiD text-to-image workflow, generating an image of a leopard in a jungle directly from a prompt using the lightweight DIT model.AI Search
4:250:43Generate images with Stable Diffusion 3.5The video demonstrates entering a text prompt, selecting CLIP models, and clicking 'Queue' to generate a high-definition image using Stable Diffusion 3.5.AIPURE
12:211:24Text-to-image generation with Z-Turbo and QwenDemonstration of the Z-Turbo model and Qwen text encoder to generate specific advertising text on the side of a 3D tram model within a ComfyUI workflow.Matt Hallett Visual
2:501:21Generate an AI image from a text promptCurrentThe video shows the process of entering positive and negative prompts, configuring image dimensions, and clicking 'Run' to generate a chocolate chip cookie image in ComfyUI.@KevinStratvert
7:020:23Text-to-image generation with FluxThe user demonstrates Flux's prompt adherence by generating an image of an old TV with the word 'flux' on it in an abandoned workshop.Artificial Images