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Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology.

The company finally unveiled the new system in September, outing it as OpenAI’s first “reasoning” model and renaming it “o1.” Much like the two-stage release of GPT-2, where a stripped ...

Ellie Henry from Milton Keynes developed Ehlers-Danlos syndrome - a connective tissue disorder – as a teenager. "I hope that more people with disabilities try skiing – it really is something I ...