The important moves in artificial intelligence.

Harness engineering: leveraging Codex in an agent-first world

By Ryan Lopopolo, Member of the Technical Staff

Beyond one-on-one: Authoring, simulating, and testing dynamic human-AI group conversations

Human-Computer Interaction and Visualization

How AI trained on birds is surfacing underwater mysteries

Climate & Sustainability

Accelerating Mathematical and Scientific Discovery with Gemini Deep Think

Research papers point to the growing impact of Deep Think across fields

Bringing ChatGPT to GenAI.mil

OpenAI for Government announces the deployment of a custom ChatGPT on GenAI.mil, bringing secure, safety-forward AI to U.S. defense teams.

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

OpenAI shares its approach to AI localization, showing how globally shared frontier models can be adapted to local languages, laws, and cultures without compromising safety.

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

An autonomous lab combining OpenAI’s GPT-5 with Ginkgo Bioworks’ cloud automation cut cell-free protein synthesis costs by 40% through closed-loop experimentation.

How AI tools can redefine universal design to increase accessibility

Education Innovation

GPT-5.3-Codex System Card

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.

​Sequential Attention: Making AI models leaner and faster without sacrificing accuracy

Algorithms & Theory

Unlocking the Codex harness: how we built the App Server

Learn how to embed the Codex agent using the Codex App Server, a bidirectional JSON-RPC API powering streaming progress, tool use, approvals, and diffs.

H Company's new Holo2 model takes the lead in UI Localization