Company intelligence
As of June 25, 2026, Mirendil was last valued at $1B (June 2026 Seed) and has raised at least $200M in equity across 1 sourced funding round.
Mirendil is a stealth San Francisco AI lab founded by ex-Anthropic researchers building frontier AI models and an agentic platform specialized in automating AI research and development itself.
Mirendil is a San Francisco AI lab building self-improving AI systems meant to automate much of the work of AI and scientific research.[1] Neyshabur is a co-inventor of SAM, a widely used algorithm for improving the output quality of AI models.[2] The founding team also includes Shayan Salehian, an early member of xAI's ML engineering team, and Tara Rezaei, an MIT graduate.[3] The company plans to offer its self-improving AI to scientists in fields such as chemistry, medicine and robotics, who would use it to build models for specific research tasks.[2] In August 2026 it signed a multiyear Google Cloud compute deal worth more than $100 million, according to Neyshabur, giving it access to Google TPUs, Nvidia GPUs and managed training clusters.[4],[2] As of that report, Mirendil had no public product.[1]
Mirendil is a San Francisco AI lab founded by ex-Anthropic researchers that raised a $200M seed at $1B in June 2026 and has no public product.
Mirendil is a San Francisco AI lab building what it calls self-improving AI: models trained to be good at AI research, wrapped in a system that plans experiments, runs them and iterates on the results with progressively less human input. Its investor Andreessen Horowitz describes it as a lab-grade research platform meant to let engineers and researchers outside the big labs do frontier model work, with scientists and other domain experts as the longer-term users. The firm's shorthand for it is 'vibe research'.[1],[2]
The company says the goal is an AI system that can autonomously upgrade itself, and that it plans to make the technology available to scientists in fields such as chemistry, medicine and robotics, who would use it to build frontier models tuned to specific research tasks. CEO Behnam Neyshabur has framed the thesis as 'the most important application of AI is AI itself'. SiliconANGLE noted that the company's website contained no technical information, and that job postings pointed to work on new transformer variants, novel attention mechanisms and reinforcement-learning sandboxes.[3],[1]
As of September 2026 Mirendil had no public product. Tech Funding News places it among the 'neolabs' that have raised large sums on the premise that automating AI research is the highest-leverage bet in the industry, alongside Safe Superintelligence, Recursive Superintelligence, Thinking Machines Lab and Periodic Labs.[1]
Neyshabur and Harsh Mehta met at Google in 2019 after Mehta cold-emailed him. Neyshabur went on to co-lead Google DeepMind's Blueshift team on reasoning and math for Gemini; Mehta built the first version of Anthropic's internal AI-research platform, at one point as a team of one. Both joined Anthropic in late 2024 and left together in December 2025, founding Mirendil that month with Shayan Salehian, an early xAI engineer, and Tara Rezaei Kheirkhah, an MIT graduate.[1],[2]
The company announced its seed round on June 24, 2026, roughly six months after founding. In August 2026 it signed a multiyear Google Cloud compute deal, and by late September Bloomberg was reporting talks on a new round at five times the June valuation.[2],[4],[1]
In September 2026, Bloomberg reported that Kleiner Perkins was in talks to lead a new round of up to $1 billion at a $5 billion valuation, with Andreessen Horowitz also negotiating to invest again. Neither firm commented. The round had not been announced as of the report and should be treated as unconfirmed.[1]
No revenue has been disclosed. The $200 million seed is the only closed round on record, so total disclosed funding is $200 million.[3]
Behnam Neyshabur is co-founder and chief executive officer; he worked on AI for science for more than seven years at Google and Anthropic and is a co-inventor of SAM, an algorithm for improving model output quality. Harsh Mehta is co-founder and chief technology officer. Shayan Salehian was a core member of xAI's ML engineering team dating back to the original Twitter, and Tara Rezaei is a 23-year-old MIT graduate and olympiad medalist.[3],[2]
In August 2026 Mirendil signed a multiyear partnership with Google Cloud for compute. Neyshabur told TechCrunch the deal is worth upward of $100 million, about half of what the company raised in its seed. It gives Mirendil access to Google TPUs and Nvidia GPUs plus managed training clusters; Mehta said the mix of chips lets the company match workloads to the right accelerator and lower costs for itself and its future customers.[4]
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Mirendil is an AI infra company, based in San Francisco, California, USA, founded 2025 by Behnam Neyshabur, Harsh Mehta.
| Date | Round | Amount | Valuation | Lead investors | Source |
|---|---|---|---|---|---|
| Sep 22, 2026 | Series A (reported)Rumorednot counted: rumored | Up to $1B | $5Bpost-money | Kleiner Perkinsunverified WithAndreessen Horowitzunverified | Bloomberg |
| Jun 25, 2026 | Seed | $200M | $1Bpost-money | WithNvidia | SiliconANGLE |
Equity only. “Equity raised” above sums the rounds with a dated, linked source; rumored rounds, tender offers and secondary sales are listed but not counted, and debt financing is listed separately.
In June 2026 Mirendil raised a $200 million seed round at a $1 billion valuation, led by Andreessen Horowitz, with Kleiner Perkins and Nvidia also investing.[2] In September 2026 Bloomberg reported Kleiner Perkins was in talks to lead a round of up to $1 billion valuing Mirendil at $5 billion; the round had not been announced.[1],[2]
Mirendil, the self-improving-AI startup founded by two ex-Anthropic researchers three months ago, is reportedly in talks with Kleiner Perkins and Andreessen Horowitz to raise up to $1 billion at a $5 billion valuation.
AI research lab Mirendil signed a multi-year Google Cloud partnership worth more than $100M for TPU and GPU compute to train self-improving AI systems aimed at eventually automating an entire frontier lab's research work.
Mirendil, a new and largely stealth frontier AI lab focused on building systems for AI research and development itself, raised a $200 million seed round co-led by Andreessen Horowitz and Kleiner Perkins, with Nvidia among its backers. A nine-figure seed for a pre-product lab is one of the year's clearest signals that capital is racing to fund the next generation of foundation-model challengers.
Mirendil, a stealthy startup building foundational AI systems for scientific and industrial research and development, launched with a staggering $200 million seed round co-led by Andreessen Horowitz and Kleiner Perkins, with Nvidia among its backers. The size of a seed once reserved for Series B underscores how aggressively top investors are pre-funding teams chasing AI that can accelerate discovery in chemistry, materials and the physical sciences.
Mirendil, a San Francisco frontier lab building systems designed to excel at AI research and development itself, raised a $200 million seed round led by Andreessen Horowitz and Kleiner Perkins. The gargantuan seed reflects investor conviction that automating AI research -- models that help build better models -- could be the highest-leverage frontier in the field.
In June 2026 Mirendil raised a $200 million seed round at a $1 billion valuation, led by Andreessen Horowitz, with Kleiner Perkins and Nvidia also investing.[2]
CEO Behnam Neyshabur spent more than seven years on AI for science at Google and Anthropic, and CTO Harsh Mehta built the first version of Anthropic's internal autoresearch platform.[3],[2]
Mirendil is a San Francisco AI lab building self-improving AI systems meant to automate much of the work of AI and scientific research.[1]
Mirendil has raised at least $200M in equity across 1 sourced funding round tracked by Value Add VC. The most recent was a $200M Seed in June 2026 at a $1B post-money valuation, reported by SiliconANGLE. Debt financing, tender offers and secondary sales are not counted.
Lead investors in Mirendil's sourced funding rounds include Andreessen Horowitz and Kleiner Perkins. Per round: its June 2026 Seed was led by Andreessen Horowitz and Kleiner Perkins.
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.
