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2. ChatGPT - Wikipedia

   en.wikipedia.org/wiki/ChatGPT

   ChatGPT is a generative artificial intelligence chatbot [2][3] developed by OpenAI. Launched in 2022 based on the GPT-3.5 large language model (LLM), it was later updated to use the GPT-4 architecture. ChatGPT can generate human-like conversational responses and enables users to refine and steer a conversation towards a desired length, format ...

3. GPT-2 - Wikipedia

   en.wikipedia.org/wiki/GPT-2

   e. Generative Pre-trained Transformer 2 (GPT-2) is a large language model by OpenAI and the second in their foundational series of GPT models. GPT-2 was pre-trained on a dataset of 8 million web pages. [2] It was partially released in February 2019, followed by full release of the 1.5-billion-parameter model on November 5, 2019. [3][4][5]

4. Generative pre-trained transformer - Wikipedia

   en.wikipedia.org/wiki/Generative_pre-trained...

   v. t. e. Original GPT model. Generative pre-trained transformers (GPTs) are a type of large language model (LLM) [1][2][3] and a prominent framework for generative artificial intelligence. [4][5] They are artificial neural networks that are used in natural language processing tasks. [6] GPTs are based on the transformer architecture, pre ...

5. GPT-4o - Wikipedia

   en.wikipedia.org/wiki/GPT-4o

   Proprietary. Website. openai.com /index /hello-gpt-4o. GPT-4o ("o" for "omni") is a multilingual, multimodal generative pre-trained transformer developed by OpenAI and released in May 2024. [1] GPT-4o is free, but with a usage limit that is five times higher for ChatGPT Plus subscribers. [2] It can process and generate text, images and audio. [3]

6. OpenAI Announces a Customizable ChatGPT and More ... - AOL

   www.aol.com/news/openai-announces-customizable...

   At a developer conference in San Francisco, the company also announced a new, more powerful model of GPT-4 and slashed prices. OpenAI Announces a Customizable ChatGPT and More Powerful, Cheaper ...

7. GPT-1 - Wikipedia

   en.wikipedia.org/wiki/GPT-1

   Architecture. The GPT-1 architecture was a twelve-layer decoder-only transformer, using twelve masked self-attention heads, with 64-dimensional states each (for a total of 768). Rather than simple stochastic gradient descent, the Adam optimization algorithm was used; the learning rate was increased linearly from zero over the first 2,000 ...