- ChatGPT - Wikipedia
ChatGPT is a generative artificial intelligence chatbot developed by OpenAI, and released in November 2022 It uses a generative pre-trained transformer (GPT), to generate text, speech, and images in response to user prompts [3][4] It is credited with accelerating the AI boom, an ongoing period marked by rapid investment and public attention toward the field of artificial intelligence (AI
- OpenAI o4-mini - Wikipedia
OpenAI o4-mini is a generative pre-trained transformer model created by OpenAI On April 16, 2025, the o4-mini model was released to all ChatGPT users (including free-tier users) as well as via the Chat Completions API and Responses API [1][2][3][4] Additionally, OpenAI introduced the o4-mini-high model, which was made available exclusively to paid-tier ChatGPT users The high model was a
- GPT-4o - Wikipedia
GPT-4o ("o" for "omni") is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024 [2] It can process and generate text, images and audio [3][4] Upon release, GPT-4o was free in ChatGPT, though paid subscribers had higher usage limits [5] GPT-4o was removed from ChatGPT in August 2025 when GPT-5 was released, but OpenAI reintroduced it for
- GPT-4. 5 - Wikipedia
GPT-4 5 (codenamed " Orion ") [2] is a large language model developed by OpenAI as part of the GPT series Officially released on February 27, 2025, GPT-4 5 is available to users subscribed to the ChatGPT Plus and Pro plans across web, mobile, and desktop platforms [3] Access was also provided through the OpenAI API and Developer Playground until July 14, 2025 [4][5][6] On August 7, 2025
- OpenAI o3 - Wikipedia
OpenAI o3 is a reflective generative pre-trained transformer (GPT) model developed by OpenAI as a successor to OpenAI o1 for ChatGPT It is designed to devote additional deliberation time when addressing questions that require step-by-step logical reasoning [1][2] On January 31, 2025, OpenAI released a smaller model, o3-mini, [3] followed on April 16 by o3 and o4-mini [4]
- Lawsuit alleges ChatGPT convinced user he could bend time . . .
Lawsuit alleges ChatGPT convinced user he could 'bend time,' leading to psychosis WILL STEAKIN November 7, 2025 1 OpenAI releases report on ChartGPT and mental health [MUSIC]
- GPT-4 - Wikipedia
OpenAI has not revealed technical details and statistics about GPT-4, such as the precise size of the model [5] An early version of GPT-4 was integrated by Microsoft into Bing Chat, launched in February 2023 GPT-4 was released in ChatGPT in March 2023, [1][not verified in body] and removed in 2025 [6] GPT-4 is still available in OpenAI's API
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