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The AI Daily Brief · Wednesday, September 30, 2026

OpenAI Opens ChatGPT to Third-Party Developers with Plugin Extensions

OpenAI is now allowing outside developers to build full native applications with plugin extensions directly into ChatGPT. This move aims to expand the ChatGPT ecosystem, potentially turning it into an app store, with developers able to integrate their services and have them surfaced within user conversations.

personTivopersonChristian KellendercompanyOpenAIcompanyChatGPT

The tape

3 quotes
“You can now build full native apps with plugin extensions and ship them right into ChatGPT. We have over 1.2 billion weekly users and will surface relevant plugins in the conversations.”
Tivo
“This feature is technically called plugin extensions.”
“Does OpenAI also get your user traces?”
Christian Kellender
Heard on The AI Daily Brief — “The Most Important New AI Tools from OpenAI DevDay”, published Wednesday, September 30, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via Gemini audio transcription · $0.02
OpenAI Opens ChatGPT to Third-Party Developers with Plugin Extensions — Heardvine