OpenAI's ChatGPT-5.6 gets the same banhammer treatment as Anthropic’s Mythos from the federal government — source says that Washington cautioned OpenAI against releasing the model without receiving approval

The latest high-profile AI model, OpenAI's ChatGPT-5.6, has hit a regulatory roadblock similar to Anthropic's Mythos, as the U.S. government reportedly warned against its release without prior approval. This move underscores a growing federal interest in scrutinizing powerful AI models before they go public, aiming for better oversight. This cautious approach by Washington aligns with a presidential executive order requesting access to major AI developments 30 days ahead of their launch, though it's causing friction as companies like OpenAI seek a more sustainable release strategy for the future.