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OpenAI Release notes and new features

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OpenAI releases

November 2026 digest

2 releases

OpenAI-hosted sandboxes in the Agents API now include the Artifact SDK and skills for creating and editing

OpenAI-hosted sandboxes in the Agents API now include the Artifact SDK and skills for creating and editing spreadsheets, presentations, and Word documents. Added Ultrafast mode to the Agents API. Set agent.service_tier to ultrafast with a supported model to reduce the time between generated tokens.

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About and activity

OpenAI is an American artificial intelligence (AI) public benefit corporation (PBC) headquartered in San Francisco, California. It develops proprietary generative AI models, particularly its generative pre-trained transformer (GPT) series of large language models.

Official release-notes pages 10
Release-notes pageFeed
Codex changelog
learn.chatgpt.com
None
Codex releases
github.com
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Agents SDK (JS) releases
github.com
RSS
Agents SDK (Python) releases
github.com
RSS
API changelog (developers)
developers.openai.com
None
ChatGPT , Release Notes
help.openai.com
None
ChatGPT Enterprise and Edu release notes
help.openai.com
None
Node SDK releases
github.com
RSS
Python SDK releases
github.com
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Release Notes
openai.com
None