Google’s Quantum AI division announced a quantum computing breakthrough on October 15, 2026. Using its Willow processor, the team demonstrated a technique called magic state cultivation that reduced computational errors by a factor of 40 compared with previous methods. The advance could help make quantum computers more reliable and scalable, with potential effects across industries.
The announcement underscores Alphabet’s investment in technologies beyond its core advertising and cloud businesses. Practical applications of quantum computing remain some time away, but the breakthrough could strengthen Google’s position in the field.
Alphabet also faces a securities class action lawsuit related to its Gemini 3.5 Pro AI model.