Mirendil raises $200M seed at $1B valuation: ex-Anthropic researchers build AI for AI R&D
Mirendil, a San Francisco frontier AI lab founded by former Anthropic, OpenAI, Google DeepMind, and xAI researchers, closed a $200 million seed round at a $1 billion valuation co-led by Andreessen Horowitz and Kleiner Perkins, with NVIDIA participating. The founding team, led by Behnam Neyshabur, Harsh Mehta, Shayan Salehian, and Tara Rezaei, numbers roughly 20 engineers and researchers. This is one of the largest seed rounds in AI history, placing it in the category of mega-seed financings that venture firms now reserve for later-stage companies or exceptionally differentiated talent.
Mirendil's thesis: frontier AI development is concentrated in a handful of well-funded labs, but many scientific breakthroughs — drug discovery, chemistry, materials science, robotics — require domain expertise that lives elsewhere. The company is building autonomous AI systems designed to accelerate AI research itself, enabling researchers and organizations outside the mega-labs to develop frontier models optimized for specialized tasks. The vision sits at the intersection of agentic AI and AI R&D infrastructure: systems that propose experiments, write and run code, interpret results, debug failures, and decide what to try next, all with minimal human intervention.
For infrastructure builders and researchers, Mirendil signals a structural shift in how VCs evaluate frontier AI: team pedigree and research ambition now outweigh product-market fit or revenue. The $200M warrants investment in autonomous research infrastructure before any commercial product ships. NVIDIA's participation also reflects the chip giant's strategy of investing in startups that will drive demand for high-end GPUs. The company plans to release its first model and product in the coming months, though no technical details have been disclosed. If the thesis holds, decentralized AI R&D could become a major category in the next phase of AI infrastructure.
Sources
- Primary source
- unite.ai
“The San Francisco-based startup has emerged from stealth with a $200 million seed funding round at a $1 billion valuation, one of the largest seed financings ever announced by an AI startup”
- siliconangle.com
“Mirendil stated in its Wednesday funding announcement that Kleiner Perkins, Nvidia Corp. and several other investors contributed as well”
- cryptopolitan.com
“Co-founders of Mirendil include Neyshabur, Harsh Mehta, Shayan Salehian, and Tara Rezaei, who have extensive experience working on large-scale machine learning and optimization research”
- app.dealroom.co
“Mirendil, a startup building a platform that lets engineers and researchers do frontier AI work outside the big labs, has raised a $200 million seed round at a roughly $1 billion valuation”
- techfundingnews.com
“The company's ambition is to compress research cycles that currently take months of human work into days of automated iteration”