A detailed look at GPT-6 Astra's rollout, agent capabilities, 1.05M context window, real pricing, Responses API usage, and migration requirements.
Use GPT-5.6 Programmatic Tool Calling for bounded tool orchestration while preserving schemas, retry limits, approval boundaries, and final verification.
Construct an offline GPT-5.6 Responses API workflow with explicit reasoning, narrow tools, usage capture, and a recorded cost baseline.
Use a fixed GPT-5.5 snapshot in a controlled Responses API tool loop with reasoning policy, validation, idempotent execution, and recoverable checkpoints.
Migrate one Python text path to the Responses API while preserving model, state, error, and evaluation control.