OpenAI and Anthropic limit new models during cybersecurity review

Economic Times reported that OpenAI and Anthropic limited access to new AI models during a cybersecurity review requested by the Trump administration. The story says OpenAI's GPT-5.6 Sol is being released only to selected partners, while Anthropic's Mythos 5 received partial approval after concerns about misuse. The episode shows how frontier-model launches can now be slowed or narrowed by government security review before broader release.

Key details: Published June 27, 2026 at 07:11 IST, OpenAI and Anthropic were asked to limit access to new models, GPT-5.6 Sol and Mythos 5 were named in the report, The review centered on cybersecurity and misuse risk.

Why it matters: Frontier AI releases are becoming subject to security review before broad rollout, which changes launch strategy for labs and customers.