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. 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.…