OpenAI released GPT-6 Sol and Luna on Tuesday, essentially more affordable versions of GPT-6 Astra that come closer to Astra on alignment than GPT-5.6 Sol did , but still fall short of the flagship model. Most notably, the AI company slashed token prices, making the new GPT-6 models significantly cheaper to use. Beyond token prices, though, OpenAI says better caching can also help developers push costs down even more. Per OpenAI : “Improvements in caching and inference let us serve these models at lower cost,” with API prices for Sol and Luna down 50% compared to their GPT-5.6 counterparts...

Source: The New Stack