CEO of OpenAI Sam Altman walks through the Hart Senate Office Building, following meetings on Capitol Hill, in Washington, D.C., U.S., June 3, 2026.Evelyn Hockstein | ReutersOpenAI CEO Sam Altman told CNBC on Thursday that the company's latest artificial intelligence model is 54% more token efficient on agentic coding tasks, and that it's "as good or better" than competing models on the market. "Every enterprise now is thinking about spend and the value they're getting in exchange for AI, and this is what we really want to do," Altman said. OpenAI on Thursday is rolling out its latest series of models, GPT-5.6 Sol, Terra and Luna, which it announced last month. The company limited the initial launch to a "small group of trusted partners" at the request of the U.S. government.This is breaki