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GPT-6 Astra release and documentation
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OpenAI released GPT-6 Astra on September 4, 2026, a new model accompanied by official documentation. The launch occurred amid ongoing industry scrutiny over AI agent safety practices.
- GPT-6 Astra released September 4, 2026
- Official OpenAI documentation published September 3, 2026
- Launch coincided with heightened safety concerns around autonomous agents
- Model designated as successor to GPT-5 line