Large language models

Understanding the 4 Main Approaches to LLM Evaluation (From Scratch)

Multiple-Choice Benchmarks, Verifiers, Leaderboards, and LLM Judges with Code Examples

With GPT-5, Wrtn builds lifestyle AI for millions in Korea

Wrtn scaled AI apps to 6. 5M users in Korea with GPT-5, creating ‘Lifestyle AI’ that blends productivity, creativity, and learning—now expanding across East Asia.

Introducing parental controls

We’re rolling out parental controls and a new parent resource page to help families guide how ChatGPT works in their homes.

Buy it in ChatGPT: Instant Checkout and the Agentic Commerce Protocol

We’re taking first steps toward agentic commerce in ChatGPT with new ways for people, AI agents, and businesses to shop together.

Swift Transformers Reaches 1.0 – and Looks to the Future

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.

Introducing ChatGPT Pulse

Today we're releasing a preview of ChatGPT Pulse to Pro users on mobile. Pulse is a new experience where ChatGPT proactively does research to deliver personalized updates based on your chats, feedback, and connected apps like your calendar.

ENEOS Materials brings ChatGPT Enterprise to manufacturing

ENEOS Materials uses ChatGPT Enterprise to speed research, improve plant design safety, and cut HR analysis time by 90%, with 80% reporting better workflows.

SchoolAI builds an AI platform that empowers teachers

SchoolAI uses GPT-4. 1, image generation, and TTS to power safe, teacher-guided AI tools for over 1 million classrooms, improving engagement, oversight, and personalized learning.

SyGra: The One-Stop Framework for Building Data for LLMs and SLMs

Building towards age prediction

Learn how OpenAI is building age prediction and parental controls in ChatGPT to create safer, age-appropriate experiences for teens while supporting families with new tools.

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.

Addendum to GPT-5 system card: GPT-5-Codex

This addendum to the GPT-5 system card shares a new model: GPT-5-Codex, a version of GPT-5 further optimized for agentic coding in Codex. GPT-5-Codex adjusts its thinking effort more dynamically based on task complexity, responding quickly to simple conversational queries or small tasks, while independently working for longer on more complex tasks.

Tricks from OpenAI gpt-oss YOU 🫵 can use with transformers

Fine-tune Any LLM from the Hugging Face Hub with Together AI

Jupyter Agents: training LLMs to reason with notebooks

SafetyKit scales risk agents with OpenAI’s most capable models

Discover how SafetyKit leverages OpenAI GPT-5 to enhance content moderation, enforce compliance, and outpace legacy safety systems with greater accuracy .

Mistral AI raises 1.7B€ to accelerate technological progress with AI

Mistral raises 1.7B€ to accelerate technological progress with AI

Understanding and Implementing Qwen3 From Scratch

A Detailed Look at One of the Leading Open-Source LLMs