Harmonic Raises $100M Series B to Develop Mathematical Superintelligence

Harmonic, an AI lab, raised $100 million in a Series B funding round at a $900 million post-money valuation. The funding will accelerate the development of their Mathematical Superintelligence (MSI) model, Aristotle, which verifies accuracy, ensures logical reasoning, and flags errors. Aristotle's MSI is designed to solve mathematical problems far exceeding human capabilities, and will be used in high-stakes applications such as software verification and theoretical physics.

Harmonic, an artificial intelligence startup co-founded by Robinhood Markets Inc. (NASDAQ:HOOD) Chief Executive Officer Vlad Tenev, has raised $100 million in a Series B funding round, valuing the company at $875 million [1]. The funding round was led by Kleiner Perkins, with Sequoia Capital, Index Ventures, and Paradigm also participating [2]. The investment will accelerate the development of Harmonic's Mathematical Superintelligence (MSI) model, Aristotle, which is designed to solve complex mathematical problems at a level exceeding human capabilities.

Harmonic, founded in 2023 by Tenev and Tudor Achim, aims to create "mathematical superintelligence." Achim, who previously led autonomous driving startup Helm.ai, serves as the company’s CEO. The company's flagship AI model, Aristotle, is expected to be available to researchers and the general public later this year [1]. Unlike language-based AI prone to hallucinations, Aristotle's use of MSI verifies accuracy, ensures coherent logical reasoning, and transparently flags errors and inconsistencies [2].

The funding will enable Harmonic to make significant strides in commercializing Aristotle, which is designed to solve mathematical problems far exceeding human capabilities. This technology is particularly suited for high-stakes applications such as software verification, formal verification of existing code, and theoretical physics [2]. By accelerating mathematics, Harmonic believes that Aristotle can drive breakthroughs across multiple dependent fields, including theoretical physics and engineering.

Vlad Tenev, Co-Founder and Executive Chairman of Harmonic, expressed excitement about the potential of Aristotle to move Mathematical Superintelligence from research to real-world applications. "Mathematical Superintelligence is moving from research to real-world applications, and we’re excited for Aristotle to start putting this AI capability into the hands of users," said Tenev [2].

The Series B funding round follows Harmonic's $75 million Series A funding in September 2024, led by Sequoia Capital, with significant participation from Index Ventures [2]. The company is based in Palo Alto, California.

References:
[1] https://www.investing.com/news/company-news/robinhood-ceos-ai-startup-harmonic-raises-100-million-for-mathfocused-ai--bloomberg-93CH-4130805
[2] https://www.businesswire.com/news/home/20250710118878/en/Harmonic-Raises-%24100-Million-Series-B-to-Accelerate-Development-of-Mathematical-Superintelligence