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.
Spring Update
Introducing GPT-4o and making more capabilities available for free in ChatGPT.
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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.
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Nov 6, 2023
Introducing GPTs
You can now create custom versions of ChatGPT that combine instructions, extra knowledge, and any combination of skills.
OpenAI Blog
Jan 16
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.
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
Sep 25, 2025
More ways to work with your team and tools in ChatGPT
New shared projects, smarter connectors, and compliance and security updates help teams get more done.
OpenAI Blog
Aug 28, 2023
Introducing ChatGPT Enterprise
Get enterprise-grade security & privacy and the most powerful version of ChatGPT yet.
OpenAI Blog
Jan 29
Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT
On February 13, 2026, alongside the previously announced retirement of GPT‑5 (Instant, Thinking, and Pro), we will retire GPT‑4o, GPT‑4. 1, GPT‑4.
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 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
Nov 19, 2025
A free version of ChatGPT built for teachers
ChatGPT for Teachers is a secure workspace with education‑grade privacy and admin controls. Free for verified U.
OpenAI Blog
Feb 12
Introducing GPT-5.3-Codex-Spark
Introducing GPT-5. 3-Codex-Spark—our first real-time coding model.