OpenAI cuts GPT-5.6 Luna price by 80%

OpenAI slashed GPT-5.6 Luna's price 80% to $0.20 per million input tokens and $1.20 per million output, and cut GPT-5.6 Terra 20% to $2/$12. GPT-5.6 Sol gained a 2.5x faster API mode at 2x price. The cuts stem from using GPT-5.6 Sol to optimize inference, cutting serving costs 20%.