OpenAI's GPT-5.6 Sol launches to rival Claude Mythos under government access rules it calls unsustainable

OpenAI has launched its new model, GPT-5.6 Sol, which surpasses Anthropic's Claude Mythos 5 in coding benchmarks. However, the rollout faces government-imposed restrictions that OpenAI deems unsustainable. These limitations hinder OpenAI's ability to deploy advanced technologies effectively, especially as competition intensifies among major AI firms. This situation highlights the growing tension between innovation and regulatory frameworks.