Emphasis
Model C introduces an internal next-generation model named Astra, whereas the consensus and other models do not mention it.
Model C introduces Astra as an internal next major model that might be related to future releases.
Grok
“On August 1, 2026, OpenAI published a research blog post detailing ten advances”
Models A and B do not discuss Astra and focus solely on the GPT-5.6 family and the absence of a GPT-6 date.
Gemini, OpenAI
“announced a release date for GPT-6”