OpenAI’s release of the GPT-6 family, including flagship GPT-6 Astra in early September 2026 and follow-on variants like GPT-6.1 Sol by late September, has reinforced trader focus on a 2027 timeline for GPT-7. No official GPT-7 announcement or naming has occurred as of late October, consistent with the company’s pattern of roughly annual frontier-model cycles after GPT-5 in 2025. Unverified internal rumors around a base model codenamed “Bel” circulate but lack confirmation and are distinguished from any shippable GPT-7. Prediction-market odds currently imply roughly even chances by mid-2027 and strong consensus by year-end, reflecting OpenAI’s compute scale and competitive pressure from labs like Anthropic and Google. No major catalysts are scheduled before developer events or earnings updates that could shift the implied probability.