OpenAI Blog
May 13, 2024
Introducing GPT-4o and more tools to ChatGPT free users
Introducing GPT-4o and more tools to ChatGPT free users We are launching our newest flagship model and making more capabilities available for free in ChatGPT.
Introducing ChatGPT Go, now available worldwide
ChatGPT Go is now available worldwide, offering expanded access to GPT-5. 2 Instant, higher usage limits, and longer memory—making advanced AI more affordable globally.
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OpenAI Blog
Aug 6
Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users
ChatGPT introduces improved GPT-5. 6 Sol with better accuracy and consistency, plus expanded access for free users and unlimited everyday chats with GPT-5.
OpenAI Blog
Jun 30
How ChatGPT adoption has expanded
New OpenAI Signals data shows how ChatGPT adoption is growing globally, with users increasing usage, exploring more capabilities, and driving growth across regions and languages.
OpenAI Blog
Apr 20
OpenAI helps Hyatt advance AI among colleagues
Hyatt deploys ChatGPT Enterprise across its global workforce, using GPT-5. 4 and Codex to improve productivity, operations, and guest experiences.
OpenAI Blog
Jan 16
Our approach to advertising and expanding access to ChatGPT
OpenAI plans to test advertising in the U. S.
OpenAI Blog
May 5
GPT-5.5 Instant: smarter, clearer, and more personalized
GPT-5. 5 Instant updates ChatGPT’s default model with smarter, more accurate answers, reduced hallucinations, and improved personalization controls.
OpenAI Blog
Sep 19, 2024
Genmab launches “AI Everywhere”
Genmab embraces ChatGPT Enterprise, supported by OpenAI’s commitment to security and privacy
OpenAI Blog
Dec 11, 2025
Introducing GPT-5.2
GPT-5. 2 is our most advanced frontier model for everyday professional work, with state-of-the-art reasoning, long-context understanding, coding, and vision.
OpenAI Blog
May 13, 2024
Spring Update
Introducing GPT-4o and making more capabilities available for free in ChatGPT.
OpenAI Blog
Sep 15, 2025
How people are using ChatGPT
New research from the largest study of ChatGPT use shows how the tool creates economic value through both personal and professional use. Adoption is broadening beyond early users, closing gaps and making AI a part of everyday life.
OpenAI Blog
Nov 12, 2025
GPT-5.1: A smarter, more conversational ChatGPT
We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.
OpenAI Blog
Dec 5, 2024
Introducing ChatGPT Pro
Broadening usage of frontier AI