Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users

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.

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.

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.

Spring Update

Introducing GPT-4o 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.

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.

GPT-5.3 Instant: Smoother, more useful everyday conversations

Introducing GPT-5.3-Codex-Spark

Introducing GPT-5. 3-Codex-Spark—our first real-time coding model.

Introducing GPT-5.1 for developers

GPT-5. 1 is now available in the API, bringing faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools.

Introducing GPTs

You can now create custom versions of ChatGPT that combine instructions, extra knowledge, and any combination of skills.

First look at GPT-5

See how a group of leading developers use GPT-5 for the first time.

Introducing ChatGPT Enterprise

Get enterprise-grade security & privacy and the most powerful version of ChatGPT yet.