Large language models

Gemini 3 Deep Think: Advancing science, research and engineering

Our most specialized reasoning mode is now updated to solve modern science, research and engineering challenges.

Introducing GPT-5.3-Codex-Spark

Introducing GPT-5. 3-Codex-Spark—our first real-time coding model.

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.

Transformers.js v4: Now Available on NPM!

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.

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.

Introducing GPT-5.3-Codex

GPT-5. 3-Codex is a Codex-native agent that pairs frontier coding performance with general reasoning to support long-horizon, real-world technical work.

Inside OpenAI’s in-house data agent

How OpenAI built an in-house AI data agent that uses GPT-5, Codex, and memory to reason over massive datasets and deliver reliable insights in minutes.

Taisei Corporation shapes the next generation of talent with AI

Taisei Corporation’s HR team is leading the rollout of ChatGPT Enterprise to drive AI-powered talent development across the organization.

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, Thinking, and Pro), we will retire GPT‑4o, GPT‑4. 1, GPT‑4.

We Got Claude to Build CUDA Kernels and teach open models!

Terminally online Mistral Vibe.

Alyah ⭐️: Toward Robust Evaluation of Emirati Dialect Capabilities in Arabic LLMs

PVH reimagines the future of fashion with OpenAI

PVH Corp. , parent company of Calvin Klein and Tommy Hilfiger, is adopting ChatGPT Enterprise to bring AI into fashion design, supply chain, and consumer engagement.

Unlocking Agentic RL Training for GPT-OSS: A Practical Retrospective

Introducing Prism

Prism is a free LaTeX-native workspace with GPT-5. 2 built in, helping researchers write, collaborate, and reason in one place.

Categories of Inference-Time Scaling for Improved LLM Reasoning

And an Overview of Recent Inference-Scaling Papers

Think Bigger: How Small Teams Win with ChatGPT

A practical guide showing how small teams use ChatGPT to analyze data, create marketing materials, manage budgets, run meetings, and make better decisions.

Scaling PostgreSQL to power 800 million ChatGPT users

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