chatgpt-launched-nov-30-2022

IN premise — entries/2026/06/21/wiki-Generative_pre-trained_transformer-chunk-1.md

Created 2026-06-21T09:50:09+00:00

ChatGPT launched on November 30, 2022, initially running on GPT-3.5.

Summary

ChatGPT went live to the public on November 30, 2022, running on GPT-3.5 as its starting model. This sets a fixed anchor point that any reasoning about the product's timeline, early capabilities, or how it evolved since launch must be checked against.

Dependents

These beliefs depend on this one:

IN chatgpt-demonstrated-alignment-enables-adoption — ChatGPT's November 2022 launch — applying RLHF to GPT-3.5 — illustrated that alignment techniques like RLHF, applied on top of capable base models, can play a significant role in transforming raw capability into widely adopted products.