Sierra leads $950 million AI funding week as enterprise AI, space tech, and biotech rounds surge

Sierra, a provider of AI-driven tools for customer experience management, raised $950 million at a $15 billion valuation, with Google Ventures and Tiger Global leading the round for the San Francisco-based company.

The week's top 10 announced funding rounds also included Astranis (satellite development, $450 million in equity and debt), Anagram Therapeutics (biotech pill developer, $250 million), and Blitzy (autonomous software development platform, $200 million at $1.4 billion valuation).

Other major rounds went to Corgi Insurance ($160 million Series B for AI-native insurance platform), Panthalassa ($140 million Series B for ocean-wave-powered AI inference computing), Reserv ($125 million Series C for insurance services), and DeepInfra ($107 million Series B for cloud-based AI inference).