Flourish secures $500M from Jeff Bezos and top VCs for brain-inspired AI research

Flourish, a New York-based neuroscience startup, raised $500 million at a $2.5 billion valuation from investors including Jeff Bezos, Lux Capital, and GV. The company is developing Cortex AI, a brain-inspired system designed to operate on 20 to 50 watts by mapping real neurons, aiming to achieve an order-of-magnitude efficiency improvement over conventional AI hardware. The round closed around June 4, 2026, with Bezos nearly doubling his initial $50 million stake after other high-profile investors joined.

Flourish secures $500M from Jeff Bezos and top VCs for brain-inspired AI research The neuroscience-focused startup landed a $2.5B valuation without a commercial product, betting that real neurons hold the key to energy-efficient artificial intelligence. A New York startup called Flourish just pulled in $500 million at a $2.5 billion valuation, with Jeff Bezos writing one of the biggest checks. The company’s pitch: stop trying to approximate how the brain works and start actually studying it. Flourish is building what it calls Cortex AI, a system designed to emulate brain function by mapping real neurons and their connections, a field known as connectomics. The round closed around June 4, 2026, and included backing from Lux Capital, GV Alphabet’s venture arm , and Catalio Capital. Bezos initially committed roughly $50 million but nearly doubled his stake after other high-profile investors piled in. What Flourish is actually building Cortex AI aims to operate in a range of 20 to 50 watts. For context, that’s roughly the power draw of a laptop, not a server rack. If the company delivers on that target, it would represent an order-of-magnitude improvement over conventional AI hardware. The company doesn’t have a commercial product yet. This is a research lab, not a SaaS company. The $2.5 billion valuation, with the potential to stretch to $3.5 billion, is built entirely on founder pedigree and investor conviction that neuroscience-driven AI represents the next paradigm shift. The team behind the bet Flourish was co-founded by Thomas Reardon and Rob Williams. Reardon’s claim to fame is creating Internet Explorer at Microsoft. He later founded CTRL-labs, a brain-computer interface company that Meta acquired in 2019 for an estimated $1 billion, after which he directed neuromotor interface projects at Meta Reality Labs on the Neural Band wristband. Williams is a former Amazon S-team executive. The startup had been operating under the radar before this round, making the $500 million raise its first major public moment. Funding discussions started in late April 2026, and the round closed in about five weeks. Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy https://cryptobriefing.com/editorial-policy/ .