GPT-5.6 Luna Drops 80%: The Price Cascade That Resets Your Routing Tier Decisions
OpenAI cut GPT-5.6 Luna 80% and Terra 20% on July 30, while renaming Priority Processing to Fast mode. Luna at $0.20/$1.20 per 1M tokens now competes directly with DeepSeek V4 Flash and Qwen models. Here is the routing tier math every operator must recalculate.
via OpenAI