On this day: Feb 2

The largest merger on record. The same document lists xAI's September-quarter revenue at $107 million and net loss at $1.46 billion, a wide gap between valuation and results. The company name was later written as SpaceXA

The first day actual obligations took effect

The word that defined software discourse in 2025. Collins Dictionary named it its 2025 Word of the Year and added it to the dictionary

Concluded that no loss function is universally superior and that the inductive bias that suits the setting is best

The first competitive embedding model to release even its training data. Added reproducibility as a new dimension of the embedding race

An independent formulation of the same technique, with a 2–2.5× speedup