Mirendil · 2026-11-12 · notable
Mirendil raises $1B Series A — ex-Anthropic lab building AI R&D agents
In short
Mirendil, the AI lab founded by former Anthropic researchers, raised a $1B Series A led by Kleiner Perkins and Clearlake Capital. The money backs tools that let small teams do frontier AI research, including its Lor agent environment.
Mirendil · 2026-11-12 · 3 sources checked
Mirendil raises $1B to put frontier AI research tools within reach of more scientists and engineers.
What is it?
Mirendil announced a $1B Series A on 12 November 2026, led by Kleiner Perkins and Clearlake Capital, with Battery Ventures, Doerr Capital, Gil & Co, Google, M13, Pear VC and S32 also investing. The lab, started by former Anthropic researchers, raised a $200M seed round earlier in 2026.
How does it work?
Mirendil builds on agents that do the hands-on research work. Its Lor environment, now in private beta, runs hundreds of agents that write code and run experiments for days at a time. The company says one researcher working with agents pretrained its Mirendil-Base coding model from scratch in 3.5 months on under $10M of compute, and that Fern, a post-trained version, handles up to 10M tokens of context.
Why does it matter?
A $1B round for a lab whose product is AI that does AI research is a large bet that model development can move from big labs to small teams. For developers, the thing to watch is Lor: if it leaves private beta, it would be one of the first commercial agent environments built for running ML experiments end to end.
Who is it for?
ML researchers and teams following AI-for-AI-research tools