3:17 AM ET · Nov 13

Anthropic-alumni startup Mirendil raises $1 billion Series A

Mirendil, an AI research-tools startup co-founded by former Anthropic researchers Behnam Neyshabur and Harsh Mehta, raised a $1 billion Series A led by Kleiner Perkins and Clearlake Capital, with Google, Battery Ventures and others joining, the WSJ reports. The round comes about five months after a $200 million seed; the company didn't disclose a valuation. Mirendil says one researcher working with AI agents pretrained its Mirendil-Base coding model from scratch in 3.5 months for under $10 million in compute, and its Lor platform, in private beta, runs hundreds of agents on experiments for days at a time.

Source: The Wall Street Journal

On X

Congratulations to @mirendil on their $1B Series A. Today, frontier AI research and development capabilities are largely concentrated in a handful of major labs. Co-founders @bneyshabur and @HarshMeh1a, former researchers at Anthropic, founded Mirendil on the belief that making
— Battery Ventures (@BatteryVentures) Nov 12, 2026

AI startup Mirendil, founded by ex-Anthropic researchers, raised $1 billion, according to the company. Kleiner Perkins and Clearlake Capital led; Google, Battery Ventures, M13, Pear VC and S32 joined. Its June seed round raised $200 million at a $1 billion valuation.
— IPO Newsroom (@IPONewsroom_) Nov 12, 2026

Back to The Wire · Subscribe

Anthropic-alumni startup Mirendil raises $1 billion Series A

On X

Know what matters in AI.