OpenAI Blog

OpenAI o1 system card

This report outlines the safety work carried out prior to releasing OpenAI o1 and o1-mini, including external red teaming and frontier risk evaluations according to our Preparedness Framework.

Extracting concepts from GPT-4

Using new techniques for scaling sparse autoencoders, we automatically identified 16 million patterns in GPT-4's computations.

ChatGPT: Optimizing language models for dialogue

We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.

New AI classifier for indicating AI-written text

We’re launching a classifier trained to distinguish between AI-written and human-written text.

Khan Academy integrates GPT-4 as every student’s customized tutor

Khan Academy explores the potential for GPT-4 in a limited pilot program.

Fighting the New York Times' invasion of user privacy

OpenAI is fighting the New York Times’ demand for 20 million private ChatGPT conversations and accelerating new security and privacy protections to protect your data.

GPT-5-Codex

Codex just got faster, more reliable, and better at real-time collaboration and tackling tasks independently anywhere you develop—whether via the terminal, IDE, web, or even your phone.

GPT‑5.3 Instant

GPT-3.5 Turbo fine-tuning and API updates

Developers can now bring their own data to customize GPT-3.5 Turbo for their use cases.

New tools for building agents

ChatGPT Images 2.5

ChatGPT Images 2.5 helps turn your ideas, sketches, and reference photos into more personalized, polished images that better reflect your ideas.

Images 2.6

Images 2.6 brings faster image generation, GIF creation, more precise editing, and new API controls across ChatGPT, Codex, and the API.

Function calling and other API updates

We’re announcing updates including more steerable API models, function calling capabilities, longer context, and lower prices.

Our Agreement with the Department of War

Details on OpenAI’s contract with the Department of War, outlining safety red lines, legal protections, and how AI systems will be deployed in classified environments.

OpenAI Codex

We’ve created an improved version of OpenAI Codex, our AI system that translates natural language to code, and we are releasing it through our API in private beta starting today.

OpenAI frontier models and Codex are now available on AWS

OpenAI frontier models and Codex are now generally available on AWS, giving enterprises a new path to build with OpenAI through the AWS environments, controls, and procurement workflows they already use. Customers can get started with OpenAI on AWS and move faster from evaluation to production.

The next chapter of the Microsoft–OpenAI partnership

Microsoft and OpenAI sign a new agreement that strengthens its long-term partnership, expands innovation, and ensures responsible AI progress.

Video generation models as world simulators

We explore large-scale training of generative models on video data. Specifically, we train text-conditional diffusion models jointly on videos and images of variable durations, resolutions and aspect ratios. We leverage a transformer architecture that operates on spacetime patches of video and image latent codes. Our…

Confidential submission of draft S-1 to the SEC

OpenAI confirms a confidential S-1 submission to the SEC and has not yet determined timing for further action.

March 20 ChatGPT outage: Here’s what happened

An update on our findings, the actions we’ve taken, and technical details of the bug.

ChatGPT Work

ChatGPT Work is an agent that can take action across your apps and files, stay with a project for hours if needed, and turn a goal into finished work.

Generative Models

This post describes four projects that share a common theme of enhancing or using generative models, a branch of unsupervised learning techniques in machine learning. In addition to describing our work, this post will tell you a bit more about generative models: what they are, why they are important, and where they…

Scaling PostgreSQL to power 800M ChatGPT users

An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation.

SWE-bench Verified no longer measures frontier coding capabilities

SWE-bench Verified is increasingly contaminated and mismeasures frontier coding progress. Our analysis shows flawed tests and training leakage. We recommend SWE-bench Pro.

Triton: Open-Source GPU Programming for Neural Networks

We’re releasing Triton 1.0, an open-source Python-like programming language which enables researchers with no CUDA experience to write highly efficient GPU code—most of the time on par with what an expert would be able to produce.

The Hugging Face incident and the road ahead

OpenAI shares findings from the Hugging Face security incident and the steps we’re taking to strengthen AI model security, monitoring, and alignment.

OpenAI and Government of Malta partner to roll out ChatGPT Plus to all citizens

OpenAI and Malta partner to expand AI access, offering ChatGPT Plus and training to help citizens build practical AI skills and use AI responsibly.

Emergent Tool Use from Multi-Agent Interaction

We’ve observed agents discovering progressively more complex tool use while playing a simple game of hide-and-seek. Through training in our new simulated hide-and-seek environment, agents build a series of six distinct strategies and counterstrategies, some of which we did not know our environment supported. The…

OpenAI Adopts Google's SynthID Watermark for AI Images with Verification Tool

OpenAI advances AI content provenance with Content Credentials, SynthID, and a verification tool to help people identify and trust AI-generated media.

OpenAI models are coming to Google Cloud

OpenAI and Google Cloud are bringing frontier models and Codex workflows to Gemini’s Model Garden, available through Google Cloud Marketplace.