AI Mega-Rounds Accelerate: Sierra Raises $950M; Moonshot Hits $20B Valuation; Anthropic Secures 220,000 GPUs from SpaceX

Sierra, backed by Bret Taylor and led by Tiger Global and GV, raised $950 million, pushing its valuation from $10 billion to $15.8 billion in eight months, with ARR at $150 million. Chinese startup Moonshot AI, led by Meituan's Long-Z fund, closed a $2 billion round, crossing a $20 billion valuation and recording $200 million ARR in April. Anthropic signed an agreement to use the entirety of SpaceX's Colossus 1 data center compute—300+ megawatts and 220,000+ NVIDIA GPUs—coinciding with the general availability launch of Claude Opus 4.7.