OpenAI was founded, in large part, as an AI safety countermeasure to DeepMind, the AI company acquired by Google in 2014.But lately, one of DeepMind’s founders, Mustafa Suleyman, has been doing the unthinkable: looking under the hood at OpenAI’s crown jewels — its secret algorithms behind foundation models like GPT-4, people familiar with the matter said.That’s because Suleyman is now head of AI efforts at Microsoft, which has intellectual property rights to OpenAI’s software as part of its mult...