Introducing ChatGPT - OpenAI
...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 were trained on an Azure AI supercomputing infrastructure....
https://openai.com/index/chatgpt/
OpenAI
...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 & Transparency ChatGPT Explore ChatGPT Business Enterprise Education Pricing Download Sora Sora Overview Features Pricing Sora log in...
https://openai.com/
GPT-4 | OpenAI
...Continuous improvement from real-world use We?ve applied lessons from real-world use of our previous models into GPT?4?s safety research and monitoring system. Like ChatGPT, we?ll be updating and improving GPT?4 at a regular cadence as more people use it....
https://openai.com/index/gpt-4/
Introducing GPT-4o and more tools to ChatGPT free users
...You can now have voice conversations with ChatGPT directly from your computer, starting with Voice Mode that has been available in ChatGPT at launch, with GPT?4o?s new audio and video capabilities coming in the future....
https://openai.com/index/gpt-4o-and-more-tools-to-chatgpt-free/
Introducing ChatGPT search | OpenAI
...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 consider the full context of your chat to get a better answer for you....
https://openai.com/index/introducing-chatgpt-search/
What is ChatGPT? - OpenAI Help Center
...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 preference comparisons to guide the model toward desired behavior....
https://help.openai.com/en/articles/6783457-what-is-chatgpt
ChatGPT | OpenAI Help Center
...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....
https://help.openai.com/en/collections/3742473-chatgpt
The ChatGPT home page - OpenAI Help Center
...Creating an account unlocks tools that allow you to manage your conversations with ChatGPT, including the ability to save your chat history and export your ChatGPT data, share your chats, and personalize your experience with custom instructions....
https://help.openai.com/en/articles/9125172
ChatGPT can now see, hear, and speak - OpenAI
...Chat about images You can now show ChatGPT one or more images. Troubleshoot why your grill won?t start, explore the contents of your fridge to plan a meal, or analyze a complex graph for work-related data. To focus on a specific part of the image, you can use the drawing tool in our mobile app....
https://openai.com/index/chatgpt-can-now-see-hear-and-speak/
GPT-5.1: A smarter, more conversational ChatGPT - OpenAI
...We heard clearly from users that great AI should not only be smart, but also enjoyable to talk to. GPT?5.1 improves meaningfully on both intelligence and communication style. We?re also making it easier for you to shape ChatGPT?s tone....
https://openai.com/index/gpt-5-1/