Enterprise AI leader Glean raised over $260 million in its latest Series E financing round, with the company's valuation reaching $4.6 billion, doubling from $2.2 billion six months ago. This round was co-led by Altimeter and DST Global, with participation from several investment firms including Craft Ventures, Sapphire Ventures, and SoftBank Vision Fund 2. Along with the financing, Glean launched Work AI.