OpenAI’s new flagship reasoning model lists at $10/$50 per million tokens, 2.5x GPT-5.6 Sol and level with Claude Fable 5.1. Here’s the full rate card, the fine print, and how to decide before Sol’s promo ends November 21. The post GPT-6 Astra pricing: What OpenAI’s new flagship costs in 2026 appeared first on CloudZero .