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OpenAI to give EU access to new cyber model but Anthropic still holding out on Mythos

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Summary

OpenAI said it will give the European Union access to GPT-5.5-Cyber, a variation of its latest model, including EU AI office and other European businesses, governments and cyber authorities. Anthropic has not yet granted the EU preview access to Mythos, which it released a month earlier, and the Commission describes those talks as at a different stage than OpenAI's.