CAMBRIDGE, Mass., March 10, 2026 — Unreasonable Labs, the company building superintelligence for knowledge discovery, today announced it has launched from stealth and closed a $13.5 million funding round led by Playground Global, with participation from AIX Ventures, E14 Fund, and MS&AD Ventures. The company, founded by a former senior research scientist at Google DeepMind and an engineering professor at MIT, has built a foundational AI discovery engine designed to accelerate breakthroughs across chemistry, materials science, biology, and beyond by composing new knowledge.
The funding will be used to scale Unreasonable’s core technology, which pairs state of the art large language models (LLM) with a map of relationships and neurosymbolic mathematical abstractions that allow real-world patterns across disparate fields to enable generative discovery. Unreasonable’s unique pairing of capabilities creates a cross-disciplinary AI engine that moves beyond simple data retrieval to generate genuinely novel, validated scientific hypotheses, simulate solutions, and design experiments.
“We are at a turning point where AI can be both an assistant to the scientist and a catalyst for the science itself, but LLMs alone cannot solve for scientific discovery,” said Yuan Cao, PhD, co-founder and CEO of Unreasonable. “To go from idea to impact, you need to move unreasonably fast and we exist to make that possible. Unreasonable will enable R&D teams to solve in weeks what previously took years.”
“Current AI models can only retrieve what is already known, which prevents even the most impressive reasoning models from generating novel discoveries,” said Prof. Markus Buehler, co-founder and CTO of Unreasonable. “Genuine discovery requires a deeper understanding, to connect disparate ideas to ultimately synthesize new insights. By pairing models with neurosymbolic mathematical abstractions we create a machine that does not just parrot the world as it is, but actively shapes the world. At Unreasonable, we’ve built that machine to invent a better future.”