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We performed several iterations of this process. ChatGPT is fine-tuned from a model in the GPT‑3.5 series, which finished training in early 2022. You can learn more about the 3.5 series here . ChatGPT and GPT‑3.5 wer...
Following the research path from GPT, GPT‑2, and GPT‑3, our deep learning approach leverages more data and more computation to create increasingly sophisticated and capable language models. We spent 6 months making GP...
Our Research Research Index Research Overview Research Residency OpenAI for Science Latest Advancements GPT-5 OpenAI o3 OpenAI o4-mini GPT-4o GPT-4o mini Sora Safety Safety Approach Security & Privacy Trust & Transpar...
We are beginning to roll out GPT‑4o to ChatGPT Plus and Team users, with availability for Enterprise users coming soon. We are also starting to roll out to ChatGPT Free with usage limits today.
We’re releasing a research preview of GPT‑4.5—our largest and best model for chat yet. GPT‑4.5 is a step forward in scaling up pre-training and post-training.
ChatGPT is fine-tuned from GPT-3.5, a language model trained to produce text. ChatGPT was optimized for dialogue by using Reinforcement Learning with Human Feedback (RLHF) – a method that uses human demonstrations and...
This plan includes unlimited access to our smartest model, OpenAI o1, as well as to o1‑mini, GPT‑4o, and Advanced Voice. It also includes o1 pro mode, a version of o1 that uses more compute to think harder and provide...
Now, chat can get you to a better answer: Ask a question in a more natural, conversational way, and ChatGPT can choose to respond with information from the web. Go deeper with follow-up questions, and ChatGPT will con...
Chat and File Retention Policies in ChatGPT Understand how your chats and files are stored, how long they are retained, and how you can manage or delete them when needed.
It matches GPT‑4 Turbo performance on text in English and code, with significant improvement on text in non-English languages, while also being much faster and 50% cheaper in the API. GPT‑4o is especially better at vi...
