OpenAI cuts GPT-5.6 Luna pricing 80%

OpenAI cut GPT-5.6 Luna’s API price 80% to $0.20 per million input tokens and $1.20 per million output tokens, only three weeks after launching the model family. OpenAI’s pricing announcement, reported by Axios, also cuts Terra 20% to $2/$12 and offers Sol Fast mode at up to 2.5 times standard speed for twice the price. The reset sharpens the routing economics behind GPT-5.6’s agent stack: operators should rerun workload evaluations before preserving any static model assignment.