OpenAI Slashes Prices by 80% for GPT-5.6 Luna, Cost-Effectiveness Surpasses DeepSeek V4 Pro
OpenAI announced new pricing for its GPT-5.6 series, with adjustments only to the mid-range Terra and lightweight Luna models, while the flagship Sol remains unchanged. Luna experiences its largest price drop in history, with both input and output costs reduced by 80%: the cost of 1 million tokens for input drops to $0.2, and output drops to $1.2. The same series' Terra model also sees a 20% price reduction.