OpenAI in talks with EU over access to new cyber model but Anthropic still holding out on Mythos

The EU wants to regulate AI but needs OpenAI and Anthropic to let regulators through the door

OpenAI has offered the EU Commission direct access to its new GPT-5.5 Cyber model for security review, with talks already underway. Anthropic is proving harder to pin down: after four to five meetings on its Mythos…