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OpenAI unveiled GPT-5.6 Sol, a new model that claims a lead over Anthropic's Claude Mythos in agentic coding and competes in cybersecurity. The US government mandated access be limited to select partners through the API and Codex, with approval required customer by customer.
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OpenAI leads with the model, The Verge with regulation, CNBC with access limits, Wired with a White House delay, Simon Willison with a quote, Techmeme with a multi-model release to 20 firms.
Summary by ByteBrief
OpenAI limits GPT-5.6 at US government request