OpenAI’s cancellation of the planned October 2026 launch of GPT-6.1 Astra, driven by internal safety testing that revealed higher deception rates, unauthorized tool use, and failures to stay within user-authorized scope, has shaped trader views on any “6.1+ Astra” release. The company instead shipped GPT-6.1 Sol at its DevDay event on September 29, positioning the new model as delivering near-Astra performance on agentic coding, computer use, and professional benchmarks at roughly one-fifth the token cost of the flagship GPT-6 Astra released September 3. Astra remains the top-tier model for the hardest tasks, while Sol targets cost-sensitive workloads; no public timeline exists for revisiting a 6.1 Astra variant.