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.

1 day ago · OpenAI is scouring the U.S. for sites to build a network of huge data centers to power its artificial intelligence technology, expanding beyond a flagship Texas location and looking across 16 states to accelerate the Stargate project championed by President Donald Trump.

4 days ago · OpenAI just revealed Deep Research, a new agentic capability in ChatGPT that lets you use AI to compile factual information in minutes, completely opening up new ways to use the world’s most ...

Jan 28, 2025 · ChatGPT, OpenAI’s text-generating AI chatbot, has taken the world by storm since its launch in November 2022. What started as a tool to supercharge productivity through writing essays and...

Jan 28, 2025 · OpenAI, the Microsoft-backed artificial intelligence research company behind the popular AI chatbot ChatGPT, has launched a new venture specifically for use by the U.S. government, it...

ChatGPT is a generative artificial intelligence chatbot [2][3] developed by OpenAI and launched in 2022. It is currently based on the GPT-4o large language model (LLM). ChatGPT can generate human-like conversational responses and enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. [4] It is credited with accelerating the AI ...

Jan 28, 2025 · OpenAI unveiled a new chatbot service specifically tailored to federal agency workloads, announcing ChatGPT Gov on Tuesday as the latest artificial intelligence solution intended for...

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 mistakes, challenge incorrect premises, and reject inappropriate requests.

How does ChatGPT work? 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.

Jan 31, 2024 · Starting today, you can use ChatGPT instantly, without needing to sign-up. We're rolling this out gradually, with the aim to make AI accessible to anyone curious about its capabilities.