OpenAI launches Claude Mythos rival GPT-5.6 Sol under government access it calls unsustainable

OpenAI's new flagship GPT-5.6 Sol beats Anthropic's Claude Mythos 5 in coding benchmarks, but the US government is forcing a restricted rollout. OpenAI isn't happy about it. The article OpenAI launches Claude Mythos rival GPT-5.6 Sol under government access it calls unsustainable appeared first on The Decoder .