The AI sector has entered an era of unprecedented valuations — with Thinking Machines raising the largest seed round in history and nearly half of all venture capital now flowing into AI. As M.G. Siegler noted on spyglass, OpenAI leads with a $500B secondary valuation, while Anthropic, xAI, and others are pushing past the $100B mark. But as the race tilts from technology to market share and data access, smaller players remain crucial, driving innovation and attracting the att