OpenAI’s most recent flagship, GPT-6 Astra, launched September 3, 2026, followed by GPT-6 Sol, Luna, and GPT-6.1 Sol variants in late September, confirming the lab’s accelerated cadence after GPT-5 in 2025. No official announcements, previews, or documentation reference GPT-7, and unverified rumors about parameter counts or multimodal targets remain speculative. Trader sentiment reflects OpenAI’s historical pattern of flagship releases every 12–18 months, supported by expanding Stargate compute capacity, while competitive releases from Google’s Gemini and Anthropic’s Claude keep pressure on timelines. Upcoming catalysts include OpenAI’s next developer events or earnings commentary that could clarify development progress or safety evaluations before any 2027 launch window.