MIT Technology Review
6/19/2026

A startup claims it broke through a bottleneck that’s holding back LLMs
Short summary
Subquadratic, a Miami-based AI startup, has emerged from stealth claiming to have solved a decade-long mathematical bottleneck constraining large language model development. Initially met with skepticism, the company is now providing technical verification and proof. If validated, this breakthrough could significantly improve LLM efficiency and reduce computational requirements.
- •Subquadratic claims to have solved an LLM mathematical bottleneck unsolved for nearly a decade
- •The company is providing technical proof after initial industry skepticism
- •Validation could materially impact LLM efficiency and computational costs
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