OpenAI cuts prices for two of its GPT-5.6 AI models as companies grow sensitive to costs

Open AI CEO Sam Altman reacts as he attends the G7 summit, in Evian, eastern France, on June 17, 2026. Mandel Ngan | Afp | Getty ImagesOpenAI on Thursday announced it is slashing the price of two of its latest artificial intelligence models, GPT-5.6 Terra and GPT-5.6 Luna, roughly three weeks after their public release. The company is facing pressure to cater to a more cost-sensitive customer base, where enterprises have been less inclined to deploy expensive models without a clear picture of the return on their investments. It's also working to fend off competition from Chinese startups and tech giants Google and Microsoft, which have been touting cost-effective models.OpenAI launched three models as part of its GPT-5.6 series, including Sol, the most powerful offering, Terra, the mid-tier model, and Luna, its fastest offering. The company said Thursday that it's reducing the price of Terra by 20% to $2 per million input tokens and $12 per million output tokens. It's cutting the cost of Luna by 80% to 20 cents per million input tokens and $1.20 per million output tokens. Sol's pricing remains the same. "Our strategy remains focused on advancing both capability and efficiency so ea...