ComfyUI will hit a $500M valuation as developers seek more control over AI-generated content

ComfyUIa startup that helps developers manage images, video, and audio output from integrated models with a node-based workflow, has raised $30 million in funding for a $500 million valuation.

The round was led by Craft Ventures, with participation from other investors including Pace Capital, Chemistry, and TruArrow.

ComfyUI was launched as an open source project in 2023, shortly after the launch of similar versions. At the time, models like Midjourney and OpenAI’s DALL-E were ineffective, often making serious mistakes, such as adding extra fingers to hands.

To overcome these limitations, the project’s founders created a modular framework that gives developers incremental control over each step of the design process.

Their tool was so popular among designers that it eventually turned into a staple. In late 2024, ComfyUI raised $19 million in Series A funding from investors including Chemistry Ventures, Cursor Capital, and Guillermo Rauch, founder of Vercel.

Although recent versions of the spread have come a long way from adding the sixth digit to the hand, the need for the concise precision that ComfyUI provides has only grown.

“If you think about your fast-paced solution, like Midjourney or ChatGPT, you ask for something, (it only gets) 60% – 80% there,” Yoland Yan, ComfyUI co-founder and CEO, told TechCrunch. “But to change the remaining 20%, you have to test the machine.”

Yan (photo on the left) compared the process to playing in a casino because to strengthen the model a small change can lead to a completely different output, including rewriting parts that were perfect before.

ComfyUI’s node-based interface allows developers to connect other components of the generation process, giving them complete control over their final product.

“You can’t easily convey that message in a (primary) model box,” Yan said.

Developers seem to agree, as ComfyUI claims it has more than 4 million users.

This tool is used by professionals in visual design, animation, advertising, and industrial design.

The startup says that its offering has become an important marketing tool for artists and other creators that are not uncommon to see “ComfyUI designer or engineer” written as a working title on studio boards.

While video and basic graphics are improving, Yan says they’re not perfect, and a tool like ComfyUI will continue to be in demand.

“In a world where AI slop will be everywhere, Comfy’s people-in-the-loop approach will win a lot of eyes in the end,” he said.

ComfyUI’s competitors include Weavya startup that was acquired by Figma last year.