How to Migrate from GPT-5.5 and GPT-5.6 Sol to GPT-6 Astra: Responses API, Reasoning, Caching, and Compatibility
Start with access, risk, and API compatibility—not a one-line model rename GPT-6 Astra migration work should begin with an access check, because OpenAI describes Astra rollout as staged rather than instantly available to every organization. The API model identifier is gpt-6-astra, but a production application should not assume that a…
