ComfyUI Tutorial Series: Mastering Stable Diffusion AI - ComfyUI Tutorial Series Ep 63: API Nodes - Run Nano Banana, GPT-5 & Seedream 4

In this episode, we take a deep look at API Nodes in ComfyUI. These are special nodes that connect workflows to external AI services like Google Gemini (Nano Banana), GPT-5, and Seedream 4. You will learn how to use credits, run paid models without local installs, and set up workflows for image editing, text-to-image generation, batch inputs, and LLM prompt generation. By the end of this tutorial, you will know: - What API Nodes are and how they connect ComfyUI to external AI models - The advantages and limitations of running models via API instead of locally - How to top up credits and manage paid model usage - How to build workflows with Nano Banana (Gemini 2.5 Flash Image) for edits and text-to-image - How to generate large 2K and 4K images with Seedream 4 - How to use GPT-5 Nano inside ComfyUI for prompt generation and automation - Tips for chaining multiple images, using batch nodes, and comparing results This tutorial is perfect if you want to unlock more models in ComfyUI without powerful hardware or if you are exploring paid APIs for advanced image and text workflows. Get the workflows and instructions from discord for free Step 1: use this link to join if you didn't join already https://discord.gg/gggpkVgBf3 Step 2: go to this post to get the workflows https://discord.com/channels/1245221993746399232/1419972091331215372/1419972509977149621 Get the easy ComfyUI Installer from here https://github.com/Tavris1/ComfyUI-Easy-Install Check Other Episodes https://www.youtube.com/playlist?list=PL-pohOSaL8P9kLZP8tQ1K1QWdZEgwiBM0 Unlock exclusive perks by joining our channel: https://www.youtube.com/channel/UCmMbwA-s3GZDKVzGZ-kPwaQ/join Grab your Pixaroma merch from here: https://www.youtube.com/@pixaroma/store #comfyui #comfyuitutorial #api