OpenAI publishes GPT-6 Astra model guide with prompting best practices

gabrielchua · x · 2026-09-05

Follow-up to the GPT-6 Astra release: OpenAI's official model guide is live, including prompting best practices for the new model. The docs cover the Responses API, multi-agent orchestration, guardrails, evals and fine-tuning, and any page can be fetched as Markdown by appending .md to the URL.

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