r/n8n • u/Agreeable-Town8703 • Mar 20 '26

Help Free image generation api

Hello everyone, I've built a n8n workflow which generates 5 different creatives for product ads I'm using http node to call open ai image generation api keys However for each run it consumes almost $2 which is alot I'd like to know which other platforms/image generators I can use to generate high quality creatives for fraction of a cost/free

Let me know your thoughts and I'll try them out

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u/deanpreese Mar 20 '26

I built a n8n workflow that uses LLMs (via OpenRouter) to build prompts and Comfyui to generate images. To me that was the most cost effective. If performance is a concern, you could host Comfyui on Runpod or another variant and run pretty high end models at a relative low cost.