A duo of leading artificial intelligence researchers at Alphabet’s Google are planning to leave for rival Anthropic, adding to a series of high-profile departures that risk undercutting the search giant’s position in AI. Jonas Adler and Alexander Pritzel, both viewed internally as key contributors to Google’s Gemini AI model, are set to move to the Claude maker, Bloomberg first reported citing unnamed sources. Adler worked on the company’s AI coding effort and Pritzel was involved in the process of training artificial intelligence systems. The two are only the latest to take part in what is becoming a brain drain out of the search giant: the company had already lost two prominent staffers, with Nobel laureate John Jumper heading to Anthropic and star researcher Noam Shazeer going to OpenAI. Their moves rattled investors and cast new doubt on Google’s ability to compete in the fierce race to build better models.Another researcher, Arthur Conmy, wrote on X Wednesday that he was set to join Anthropic to work on AI safety. During his time at DeepMind, Conmy was a senior research engineer who contributed to the Gemini 2.5 model as well as AI coding, according to his LinkedIn profile.Bloomberg reported that two more Google AI employees are leaving Google for Anthropic, Jonas Adler and Alexander Pritzel.