Sapphire Ventures · 10 November 2026

The Expertise Layer Powering AI's Next Frontier: Why We're Backing Mercor

Sapphire Ventures

Mercor organizes expert networks to power AI training through reinforcement learning, providing task design, evaluation, and realistic practice environments for frontier labs, AI-native companies, and enterprises. Sapphire Ventures is backing the company's $750M Series D after it reached $2B annualized revenue within 24 months of its first $1M.

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Topics: AI Infrastructure · AI (Horizontal)

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