ChatGPT ○˒｜_append｜___｜20260628155835-01-•

ChatGPT	…
Developer	OpenAI
Release	November 30, 20221
Stable release	June 18, 20262
Engine	GPT-5.5
Platform	Cloud computing platforms
Available in	59 languages3
Type	• Chatbot • Large language model • Generative pre-trained transformer
License	Proprietary service
Website	chatgpt.com

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Footnotes

1. “ChatGPT – Introducing ChatGPT”. Retrieved November 30, 2022. ↩

2. “ChatGPT – Release Notes”. OpenAI. ↩

3. “How to change your language setting in ChatGPT”. OpenAI Help Center. OpenAI. Retrieved December 24, 2025. ↩