Introducing GPT-4o and more tools to ChatGPT free users
May 13, 2024 · 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 …
GPT-4 | OpenAI
Mar 14, 2023 · GPT-4 is capable of handling over 25,000 words of text, allowing for use cases like long form content creation, extended conversations, and document search and analysis.
Hello GPT-4o - OpenAI
May 13, 2024 · GPT‑4o’s text and image capabilities are starting to roll out today in ChatGPT. We are making GPT‑4o available in the free tier, and to Plus users with up to 5x higher message limits.
Introducing GPT-5 - OpenAI
Aug 7, 2025 · GPT‑5 is the new default in ChatGPT, replacing GPT‑4o, OpenAI o3, OpenAI o4-mini, GPT‑4.1, and GPT‑4.5 for signed-in users. Just open ChatGPT and type your question; GPT‑5 …
GPT-5.2 in ChatGPT - OpenAI Help Center
GPT-5.2 in ChatGPT is our flagship GPT‑5–generation model and the default for all logged‑in users. GPT-5.2 Auto is a single auto‑switching system that brings together the best of our models into a …
ChatGPT can now see, hear, and speak - OpenAI
Sep 25, 2023 · We are beginning to roll out new voice and image capabilities in ChatGPT. They offer a new, more intuitive type of interface by allowing you to have a voice conversation or show ChatGPT …
Introducing GPT-4.5 - OpenAI
Feb 27, 2025 · 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 — Release Notes - OpenAI Help Center
Dec 18, 2025 · GPT-5 in ChatGPT is our next flagship model and the new default for all logged-in users. It simplifies ChatGPT to a single auto-switching system that brings together the best of our previous …
Introducing ChatGPT - OpenAI
Nov 30, 2022 · 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 …
Model Release Notes - OpenAI Help Center
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 pretraining and post-training.