OpenAI appears to be preparing a collaboration feature called Spaces

🚨 AI News | TestingCatalog @testingcatalogOriginally posted 2026.09.29

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OpenAI is working on "Spaces" 👀 A new announcement introducing "Spaces" was added recently. Spaces could be collaborative environments where users and agents work together on generated artifacts (speculation). Some DevDay sessions mention a "Codex run that spent more than 1,000 hours" and the "Multiplayer Codex" topic, which might be closely connected (speculation). * Announcement strings redacted

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