
Introducing ChatGPT - OpenAI
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 mistakes, …
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Start using ChatGPT instantly - OpenAI
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.
GPT-5 is here - OpenAI
ChatGPT thinks harder on complex tasks and asks relevant follow-up questions to keep work moving. Every employee can get expert-level results without switching models.
Introducing ChatGPT search - OpenAI
Oct 31, 2024 · ChatGPT search connects people with original, high-quality content from the web and makes it part of their conversation. By integrating search with a chat interface, users can engage with …
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 …
ChatGPT Capabilities Overview - OpenAI Help Center
Speak naturally with ChatGPT using the mobile app or supported desktop/web platforms. You can have a hands-free conversation, choose your preferred voice, and receive spoken responses.
GPT-4 | OpenAI
Mar 14, 2023 · Training with human feedback We incorporated more human feedback, including feedback submitted by ChatGPT users, to improve GPT‑4’s behavior. We also worked with over 50 …
News - OpenAI
Nov 12, 2025 · Stay up to speed on the rapid advancement of AI technology and the benefits it offers to humanity.
Introducing GPT-5 - OpenAI
Aug 7, 2025 · Stronger multimodal performance means ChatGPT can reason more accurately over images and other non-text inputs—whether that’s interpreting a chart, summarizing a photo of a …