Periodic Labs is raising $500M at a $7.5B valuation, led by AMP, the vehicle of former a16z GP Anjney Midha. The AI science startup's value has jumped sixfold since its September seed round.
Key facts
- $500M minimum raise at $7.5B valuation
- Led by AMP, former a16z GP Anjney Midha's vehicle
- Sixfold value increase from $1.3B seed in 8 months
- Founded by ex-OpenAI VP Liam Fedus and ex-DeepMind scientist Ekin Dogus Cubuk
- Hired 20+ researchers from Meta, OpenAI, DeepMind
Periodic Labs, a startup building an AI scientist that runs automated labs for physics and chemistry discovery, is in advanced talks to raise at least $500 million at a $7.5 billion valuation, three sources told Forbes. The round is led by AMP, an investment vehicle founded by former Andreessen Horowitz general partner Anjney Midha. [Forbes]
The round was "significantly oversubscribed" and there are already discussions for a fast-follow additional round at an even higher valuation, one source said. The company did not respond to a comment request; AMP declined to comment.
Founded by Liam Fedus, a former VP of research at OpenAI, and Ekin Dogus Cubuk, a former DeepMind research scientist, Periodic Labs emerged in September 2025 with a $300 million seed round at a $1.3 billion valuation. The current deal marks a nearly sixfold increase in less than eight months. The San Francisco-based startup operates autonomous robotic laboratories that run thousands of experiments to create custom data for its AI models, targeting discoveries in superconductors and semiconductor R&D. [Forbes]
Why this matters more than the valuation
The $7.5B figure makes Periodic Labs the highest-valued AI science startup by a wide margin — but the real signal is the talent exodus it represents. The company has hired more than 20 researchers from Meta, OpenAI and DeepMind, many walking away from substantial equity packages, per the New York Times. [Forbes] That is not a normal recruiting pattern. It suggests that a critical mass of top AI researchers now believe autonomous scientific discovery, not conversational AI, is the highest-leverage application of their work.
This aligns with OpenAI CEO Sam Altman's public framing. "If I could wave a magic wand and reallocate societal wealth, I'd put so much into funding science," he told Forbes earlier this year. [Forbes] DeepMind cofounder Demis Hassabis has similarly argued that the goal is to "solve everything else" after AlphaFold won him a Nobel Prize in Chemistry in 2024. Periodic Labs is effectively betting that the next AlphaFold-level breakthrough will come from a startup, not from its founders' former employers.
The AMP angle is worth watching
Anjney Midha is a well-known AI infrastructure investor from his a16z days. His new vehicle AMP leading this round suggests the thesis is more about scaling compute for automated labs — a capital-intensive proposition — than pure research. The "significantly oversubscribed" language and fast-follow talks indicate investor demand for AI science bets is outpacing supply of credible teams.
What to watch
Watch for Periodic Labs' first published results on high-temperature superconductors. If the startup demonstrates a validated discovery within 12 months, the $7.5B valuation will look conservative and the fast-follow round will likely double it. If results are slow, the talent retention story becomes the only moat.
Key Takeaways
- Periodic Labs raising $500M at $7.5B valuation.
- Sixfold value jump in 8 months.
- Talent exodus from big AI labs signals shift to autonomous science.
What to watch
Watch for Periodic Labs' first published results on high-temperature superconductors. If the startup demonstrates a validated discovery within 12 months, the $7.5B valuation will look conservative and the fast-follow round could double it. If results are slow, the talent retention story becomes the only moat.
