OpenAI’s latest flagship large language model, GPT-6 Astra, launched in early September 2026 after GPT-5.6 earlier that year, reflecting an accelerated release cadence. No official GPT-7 announcement, preview, or naming has occurred, with all claims tracing to unverified social media leaks about an internal “Bel” pretraining run exceeding 10 trillion parameters. Traders are monitoring OpenAI’s post-training refinements, such as GPT-6.1 Sol in late September, alongside competitive pressure from Anthropic and Google models. Prediction markets currently point to a mid-2027 window, with potential catalysts including developer conferences, benchmark releases, or safety-related delays that could shift timelines.