Introducing OpenAI for India

Today at the India AI Impact Summit 2026 in Delhi, we’re launching OpenAI for India, a nationwide initiative with leading Indian partners to expand access to AI and unlock its economic and societal benefits in the world’s largest democracy.  India is now home to more than 100 million weekly ChatGPT

GPT-5.2 derives a new result in theoretical physics

We’ve published a new preprint showing that a type of particle interaction many physicists expected would not occur can in fact arise under specific conditions. The work focuses on gluons, the particles that carry the strong nuclear force. The preprint⁠(opens in a new window) is available on arXiv a

Introducing Lockdown Mode and Elevated Risk labels in ChatGPT

As AI systems take on more complex tasks—especially those that involve the web and connected apps—the security stakes change. One emerging risk has become especially important: prompt injection⁠. In these attacks, a third party attempts to mislead a conversational AI system into following maliciou

Beyond rate limits: scaling access to Codex and Sora

In the past year, both Codex and Sora have seen rapid adoption, with usage quickly pushing beyond what we originally expected. We’ve seen a consistent pattern: users dive in, find real value, and then run into rate limits. Rate limits can help smooth demand and ensure fair access; however, when use

Scaling social science research

A core part of our work at OpenAI is enabling scientists to move faster and solve harder problems. Today, our Economic Research Team is releasing GABRIEL: an open-source toolkit that uses GPT to turn unstructured text and images into quantitative measurements. It is designed for economists, social s

Introducing GPT-5.3-Codex-Spark

Today, we’re releasing a research preview of GPT‑5.3‑Codex‑Spark, a smaller version of GPT‑5.3‑Codex, and our first model designed for real-time coding. Codex-Spark marks the first milestone in our partnership with Cerebras, which we announced in January⁠. Codex-Spark is optimized to feel near-insta

Harness engineering: leveraging Codex in an agent-first world

Over the past five months, our team has been running an experiment: building and shipping an internal beta of a software product with 0 lines of manually-written code. The product has internal daily users and external alpha testers. It ships, deploys, breaks, and gets fixed. What’s different is tha

Testing ads in ChatGPT

Today, we’re beginning to test ads in ChatGPT in the U.S. The test will be for logged-in adult users on the Free and Go subscription tiers. Plus, Pro, Business, Enterprise, and Education tiers will not have ads. Ads do not influence the answers ChatGPT gives you, and we keep your conversations with

Bringing ChatGPT to GenAI.mil

Today, OpenAI for Government⁠ is announcing the next phase of our national security work: bringing ChatGPT to GenAI.mil, the Department of War’s secure enterprise AI platform used by 3 million civilian and military personnel. By joining the other frontier AI labs on GenAI.mil, we are building on ou

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Making AI work for everyone, everywhere: our approach to localization

OpenAI’s mission is to ensure AGI benefits all of humanity, and to fulfill this mission we need to meet people where they are all over the world. AI is increasingly recognized as critical national infrastructure, on a par with electricity. Governments and institutions around the world want to ensur

GPT-5 lowers the cost of cell-free protein synthesis

We’ve seen rapid progress from AI in fields like math and physics, where ideas can often be evaluated without touching the physical world. Biology is different. Progress runs through the lab, where scientists run experiments that take time and money. That’s starting to change. Frontier models can n

Introducing Trusted Access for Cyber

GPT‑5.3‑Codex is our most cyber-capable frontier reasoning model to date. Cybersecurity is one of the clearest places where that progress can both meaningfully strengthen the broader ecosystem and introduce new risks. We’ve moved from models that can auto-complete a few lines in a code editor, to mo

Navigating health questions with ChatGPT

Introducing OpenAI Frontier

AI has let teams take on things they used to talk about but never execute. In fact, 75% of enterprise workers say AI helped them do tasks they couldn’t do before. We’re hearing this from every department, not just technical teams. The way work gets done has changed, and enterprises are starting to f

GPT-5.3-Codex System Card

Introduction GPT‑5.3-Codex is the most capable agentic coding model to date, combining the frontier coding performance of GPT‑5.2-Codex with the reasoning and professional knowledge capabilities of GPT‑5.2. This enables it to take on long-running tasks that involve research, tool use, and complex

Introducing GPT-5.3-Codex

We’re introducing a new model that unlocks even more of what Codex can do: GPT‑5.3‑Codex, the most capable agentic coding model to date. The model advances both the frontier coding performance of GPT‑5.2‑Codex and the reasoning and professional knowledge capabilities of GPT‑5.2, together in one mode

Unlocking the Codex harness: how we built the App Server

OpenAI’s coding agent Codex exists across many different surfaces: the web app⁠(opens in a new window), the CLI⁠(opens in a new window), the IDE extension⁠(opens in a new window), and the new Codex macOS app. Under the hood, they’re all powered by the same Codex harness—the agent loop and logic that

VfL Wolfsburg turns ChatGPT into a club-wide capability

VfL Wolfsburg reports: 50+ custom GPTs in active daily use across operations, communications, marketing, HR, and administration Six-figure annual cost savings through reduced reliance on external agencies for repeatable work Faster drafting, translation, and standardization across core workflows B

The Sora feed philosophy

Principles Our aim with the Sora feed is simple: help people learn what’s possible, and inspire them to create. Here are some of core starting principles to bring this vision to life: Optimize for creativity. We’re designing ranking to favor creativity and active participation, not passive scrol

Snowflake and OpenAI partner to bring frontier intelligence to enterprise data

Key takeaways:  New $200 million agreement brings OpenAI frontier intelligence directly into Snowflake. Enterprise customers can use OpenAI within Snowflake to build AI agents and generate insights directly from their data. Under the partnership, OpenAI is one of the key model capabilities in Snow

Introducing the Codex app

Today, we’re introducing the Codex app for macOS—a powerful new interface designed to effortlessly manage multiple agents at once, run work in parallel, and collaborate with agents over long-running tasks. We're also excited to show more people what's now possible with Codex⁠. For a limited time we

Inside OpenAI’s in-house data agent

Data powers how systems learn, products evolve, and how companies make choices. But getting answers quickly, correctly, and with the right context is often harder than it should be. To make this easier as OpenAI scales, we built our own bespoke in-house AI data agent that explores and reasons over o

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 and Thinking), we will retire GPT‑4o, GPT‑4.1, GPT‑4.1 mini, and OpenAI o4-mini from ChatGPT. In the API, there are no changes at this time. While this announcement applies to several older models, GPT‑4o deserve

Taisei Corporation shapes the next generation of talent with ChatGPT

Founded in 1917, Taisei Corporation is one of Japan’s leading construction companies. For more than a century, it has delivered projects in Japan and around the world, helping to build the social infrastructure that supports modern life. Recently, a new question has come into focus: What should Tai