In a post on X, OpenAI CEO Sam Altman wrote that "a lot of benchmarks" suggest 5.6 sol is "the best model in the world right now," then added that his preferred proof is that "elon is obsessed with me again." The post names no specific benchmarks and shares no numbers, so the public claim here is Altman's own description of the model's standing, wrapped in a familiar jab at Musk.