When was GPT-4 released to the public?
OpenAI released GPT-4 in March 2023 within ChatGPT before its removal in 2025. An early version integrated Microsoft Bing Chat in February 2023.
Questions about GPT-4
Short answers, pulled from the story.
How many parameters does GPT-4 contain according to estimates?
Rumors suggest GPT-4 contains 1.76 trillion parameters based on speed estimates by George Hotz. News website Semafor reported sources indicating one trillion parameters existed within the system.
What is the context window size of GPT-4 Turbo with Vision?
November 2023 brought GPT-4 Turbo with Vision featuring a 128K context window at lower costs. Context windows expanded to 8,192 or 32,768 tokens unlike previous limits of 4,096 and 2,048.
Did OpenAI release weights for GPT-4 like they did for GPT-2?
OpenAI released weights alongside technical details for GPT-2 but withheld both elements entirely for GPT-4. Technical reports explicitly refrained specifying model size or architecture used during inference phases.
When was GPT-4o launched as an update to the main series?
Newer versions like GPT-4o emerged in May 2024. April 2025 marked replacement of GPT-4 in ChatGPT by newer GPT-4o variants though API remained accessible.