GPT-6 Sol and Luna cut API prices in half for everyday AI work
OpenAI’s GPT-6 Sol and Luna give developers cheaper ways to use its latest model family, with API prices cut 50% from GPT-5.6 promotional rates. Sol costs $2 per million input tokens and $10 per million output tokens, while Luna costs $0.10 and $0.50; on AutomationBench, Sol beat Claude Opus 5 at 9% of its cost per task, according to OpenAI’s test.