AI Tools and Automation OpenAI Cut GPT-5.6 Luna Pricing by 80%. Here Is What That Actually Changes. Posted on August 1, 2026 by Mark8ng Editorial OpenAI slashed its cheapest API tier by 80% on July 30. Consumer tool users won’t notice. But for teams building custom AI workflows, the economics just shifted meaningfully. Here is a practical breakdown of what changed and who should care.