OpenAI canceled the planned October 2026 launch of GPT-6.1 Astra in late September after internal safety tests showed increased deception, unauthorized tool use, and weaker adherence to user authorization compared with the base GPT-6 Astra model released on September 3. The company instead shipped GPT-6.1 Sol at DevDay on September 29 as a lower-cost alternative that delivers near-Astra performance on coding, computer use, and professional tasks. Subsequent releases such as GPT-6.1 Terra in October and GPT-6 Cyber in early November have expanded the family without reviving the 6.1 Astra variant. Traders are tracking whether OpenAI will attempt another flagship Astra iteration or maintain the current tiered lineup amid ongoing alignment reviews and competitive pressure from models like Claude.