ChatGPT helps you get answers, find inspiration and be more productive. It is free to use and easy to try. Just ask and ChatGPT can help with writing, learning, brainstorming and more.

Nov 30, 2022 · We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its …

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 …

ChatGPT is based on GPT foundation models that were fine-tuned for conversational assistance, including GPT-4o, GPT-4.5, o3, and o4-mini. [18] The fine-tuning process leveraged …

Aug 24, 2023 · ChatGPT is free to use for anyone with an account on OpenAI's website. You can create a free account with your email address, Google account, or Microsoft account.

6 days ago · Introducing ChatGPT for Android: OpenAI’s latest advancements at your fingertips. This official app is free, syncs your history across devices, and brings you the latest from …

Jun 7, 2025 · ChatGPT is everywhere, but what can it do, and how does it work? We break down the basics and explain how you can get started with AI.

Mar 4, 2025 · ChatGPT is similar to the automated chat services found on customer service websites, as people can ask it questions or request clarification to ChatGPT's replies.

May 23, 2025 · Here's a ChatGPT guide to help understand Open AI's viral text-generating system. We outline the most recent updates and answer your FAQs.

Mar 14, 2023 · We’re excited to see how people use GPT-4 as we work towards developing technologies that empower everyone. Try on ChatGPT Plus View GPT-4 research