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Sep 8, 2026 · Artificial Intelligence

GPT-6 Astra Developer Guide: Execution Model Capabilities, Migration & Prompt Strategies

This guide breaks down OpenAI's GPT-6 Astra execution model, covering its five new capabilities — async tool calls, mid-task guidance, adjustable reasoning, mismatch detection, and usage limits — plus migration steps, prompt engineering patterns, ideal use cases, and FAQs for developers integrating it via the Responses API.