Daybreak is OpenAI's response to Anthropic's Claude Mythos By Mariella Moon May 11, 2026 9:07 pm EST OpenAI has just launched Daybreak , a cybersecurity initiative that's clearly the company's competitor to Anthropic's Project Glasswing . …
… Participants will use Claude Mythos Preview, an unreleased, general-purpose model from Anthropic, to enhance their own security projects. …
… Anthropic is investigating potential "unauthorized access" to its Claude Mythos model that has been touted for its ability to find cybersecurity flaws, the company told Bloomberg . …
… Despite the months-long feud between Anthropic and the Pentagon, the National Security Agency is using the AI company's new Mythos Preview, according to Axios , which spoke to two sources with knowledge of the matter. …
… In response to Anthropic's refusal, the president ordered federal agencies to stop using Claude and the company's other services. …
… In rare cases, someone from the AI company could be granted the appropriate security clearance to see classified information. Aalok Mehta, who previously led AI policy efforts at Google and OpenAI, told the publication that training models on classified data carries certain risks. …
… Many people use AI chatbots to help with tax returns, despite the risks , but most opt for Claude or ChatGPT over Grok. …