As co-founder Grace Li tells it, her company started a few weeks before graduation in 2025, with a handful of college friends trying to make their AI game engine work. The models could make functional games, but none of the games were fun — which raised the interesting question, how can you tell if a game will be fun?
There was no substitute for human judgment, they decided, and soon they were brainstorming ways to get honest human feedback at scale.
The result became DesignArena, an AI tool now used by 5.3 million people around the world. As it turned out, there were lots of AI companies looking for scalable user feedback — and many of them were willing to pay for it.
“It was the missing bottleneck for a lot of these models to make improvements in the design space,” Li says. “About a week later, we closed our first major deal with a frontier lab, and the rest is kind of history.”
On Monday, the company behind DesignArena — dubbed Intelligence — announced a $7.9 million seed round led by Index Ventures with participation from Conviction (Sarah Guo and Mike Vernal), A*, Valkyrie, and others.







