FreeLLMMercor secures $750M Series D at $20B valuation as Gemini 4 Carbon tops paid chat rankings
Mercor raises $750M to expand AI agent evaluation for enterprises; Gemini 4 Carbon named top paid chat model.
Mercor.io Corp. announced a $750 million Series D funding round that values the company at $20 billion.
The round, which included corporate investors Nvidia, Salesforce and Zoom, follows a $350 million Series C in October 2025 that valued Mercor at $10 billion.
The company plans to use the new capital to build custom benchmarks for enterprise customers, extending its frontier‑lab services to every industry.
Google’s Gemini 4 Carbon model is currently ranked the best paid chat model on FreeLLMArena, scoring 1526 points in the latest blind vote.
What it means for you
Enterprises seeking reliable AI agents now have a dedicated service that can tailor evaluations to their specific workflows, potentially reducing risk and improving adoption.
Sources
- [AINews] Mercor $750m Series D at $20B valuation, $3B run rate, Latent Space, 11 Nov 2026
- Mercor raises $750M at $20B valuation to take AI agent evaluation to enterprises, SiliconANGLE, 10 Nov 2026
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