OpenAI Blog

How Ramp engineers accelerate code review with Codex

How Ramp engineers use Codex with GPT-5.5 to review code and ship improvements, allowing them to get substantive…

An OpenAI model has disproved a central conjecture in discrete geometry

An OpenAI model solved the 80-year-old unit distance problem, disproving a major conjecture in discrete geometry and…

Introducing OpenAI for Singapore

OpenAI for Singapore launches a multi-year AI partnership to expand deployment, build local talent, and support…

Advancing content provenance for a safer, more transparent AI ecosystem

OpenAI advances AI content provenance with Content Credentials, SynthID, and a verification tool to help people…

OpenAI and Dell partner to bring Codex to hybrid and on-premise enterprise environments

OpenAI and Dell partner to bring Codex to hybrid and on-premise environments, helping enterprises deploy AI coding…

OpenAI and Malta partner to bring ChatGPT Plus to all citizens

OpenAI and Malta partner to expand AI access, offering ChatGPT Plus and training to help citizens build practical AI…

Databricks brings GPT-5.5 to enterprise agent workflows

Databricks uses GPT-5.5 for enterprise agent workflows after the model set a new state of the art on the OfficeQA Pro…

How business operations teams use ChatGPT Work

See how business operations teams can use ChatGPT Work to create initiative briefs, strategy updates, leadership…

A new personal finance experience in ChatGPT

Preview a new personal finance experience in ChatGPT for Pro users in the U.S. Securely connect your financial accounts…

Operations workflows with ChatGPT Work

Learn practical ChatGPT Work workflows for initiative briefs, strategy updates, decision packets, and progress…

Sea's View on the Future of Agentic Software Development with Codex

Sea Limited's CPO explains why the company is deploying Codex across engineering teams to accelerate AI-native software…

Work with Codex from anywhere

Use Codex anywhere with the ChatGPT mobile app. Monitor, steer, and approve coding tasks in real time across devices…

Helping ChatGPT better recognize context in sensitive conversations

Learn how new ChatGPT safety updates improve context awareness in sensitive conversations, helping detect risk over…

Building a safe, effective sandbox to enable Codex on Windows

Learn how OpenAI built a safe, effective sandbox to enable Codex on Windows with controlled file access and network…

Our response to the TanStack npm supply chain attack

OpenAI details its response to the TanStack “Mini Shai-Hulud” supply chain attack, outlines protections taken to secure…

Finance workflows with ChatGPT Work

Learn practical ChatGPT Work workflows for reporting, variance analysis, forecasts, monthly reviews, and decision-ready…

AutoScout24 scales engineering with AI-powered workflows

Learn how AutoScout24 Group uses Codex and ChatGPT to speed development cycles, improve code quality, and expand AI…

What Parameter Golf taught us about AI-assisted research

Parameter Golf brought together 1,000+ participants and 2,000+ submissions to explore AI-assisted machine learning…

How NVIDIA engineers and researchers build with Codex

Teams use Codex with GPT-5.5 to ship production systems and turn research ideas into runnable experiments.

How ChatGPT adoption broadened in early 2026

ChatGPT adoption surged in Q1 2026, with fastest growth among users over 35 and more balanced gender usage, signaling…

OpenAI Campus Network: Student club interest form

Join the OpenAI Campus Network—connect student clubs worldwide, access AI tools, host events, and build an AI-powered…

How enterprises are scaling AI

How enterprises scale AI: from early experiments to compounding impact through trust, governance, workflow design, and…

OpenAI launches DeployCo to help businesses build around intelligence

OpenAI launches DeployCo, a new enterprise deployment company built to help organizations bring frontier AI into…

Running Codex safely at OpenAI

How OpenAI runs Codex securely with sandboxing, approvals, network policies, and agent-native telemetry to support safe…

Scaling Trusted Access for Cyber with GPT-5.5 and GPT-5.5-Cyber

OpenAI expands Trusted Access for Cyber with GPT-5.5 and GPT-5.5-Cyber, helping verified defenders accelerate…

Parloa builds service agents customers want to talk to

Parloa leverages OpenAI models to power scalable, voice-driven AI customer service agents, enabling enterprises to…

Advancing voice intelligence with new models in the API

Explore new realtime voice models in the OpenAI API that can reason, translate, and transcribe speech, enabling more…

Introducing Trusted Contact in ChatGPT

Introducing Trusted Contact in ChatGPT, an optional safety feature that notifies someone you trust if serious self-harm…

Simplex rethinks software development with Codex

Simplex boosts software development with ChatGPT Enterprise and Codex, reducing design, build, and testing time while…

How ChatGPT learns about the world while protecting privacy

Learn how ChatGPT safeguards your privacy, reduces personal data in training, and gives you control over whether your…

Singular Bank helps bankers move fast with ChatGPT and Codex

Singular Bank built Singularity, an internal assistant using ChatGPT and Codex to help bankers save 60–90 minutes daily…

Uber uses OpenAI to help people earn smarter and book faster

Uber uses OpenAI to power AI assistants and voice features that help drivers earn smarter and riders book faster across…

How frontier firms are pulling ahead

OpenAI’s B2B Signals research shows how frontier enterprises deepen AI adoption, scale Codex-powered agentic workflows,…

Introducing ChatGPT Futures: Class of 2026

Meet the ChatGPT Futures Class of 2026—26 student innovators using AI to build, research, and drive real-world impact.…

GPT-5.5 Instant System Card

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…