OpenAI launched GPT-6 Astra in early September 2026 as its flagship model with a $10/$50 per million input/output token price on the standard API tier, alongside batch discounts at half that rate and prompt caching at $1 input. The model emphasizes advanced computer use, coding, and agentic workflows, positioning it as the premium offering in OpenAI’s GPT-6 lineup that also includes lower-cost variants like GPT-6.1 Sol at $2/$10 and GPT-6 Luna at $0.10/$0.50. This tiered structure, combined with unchanged pricing over the first month post-release and competition from similarly priced frontier models, shapes trader views on whether output token costs will hold steady, decline through efficiency gains, or shift with new announcements before year-end.