OpenAI
US AI research organization that developed the GPT series of large language models.
5 milestones
OpenAI released GPT-3 via private beta API
In May–June 2020, OpenAI published the GPT-3 language model in a paper by Tom B. Brown and colleagues, and began distributing private beta API access. GPT-3's 175 billion parameters made it substantially larger than any publicly described language model at the time, enabling strong few-shot performance across diverse language tasks.
OpenAI Released the Full 1.5-Billion-Parameter GPT-2 Model
In November 2019, OpenAI released the full 1.5-billion-parameter version of GPT-2, completing a staged release the organisation had begun in February 2019 with a smaller variant, citing concerns about potential misuse of a model capable of generating coherent long-form text.
OpenAI Releases GPT-1: Improving Language Understanding by Generative Pre-Training
In June 2018, Alec Radford, Karthik Narasimhan, Tim Salimans, and Ilya Sutskever at OpenAI published 'Improving Language Understanding by Generative Pre-Training', introducing GPT-1, a 117-million-parameter Transformer pretrained on BooksCorpus via unsupervised language modelling and fine-tuned on downstream tasks, outperforming task-specific models on several NLP benchmarks.
OpenAI Released OpenAI Gym, a Toolkit for Reinforcement Learning Research
In April 2016, OpenAI publicly released OpenAI Gym, an open-source toolkit providing a standardised collection of environments for developing and benchmarking reinforcement learning algorithms, lowering the barrier to reproducible RL research.
OpenAI Founded
In December 2015, a group of technology investors and researchers (including Greg Brockman, Ilya Sutskever, Wojciech Zaremba, John Schulman, Elon Musk, and Sam Altman) announced the founding of OpenAI, a non-profit artificial intelligence research laboratory in San Francisco, with approximately one billion US dollars in pledged funding.