OpenAI is rolling out GPT-5.2 “Codex-Max” for some users

When OpenAI announced GPT-5.2-Codex, the company confirmed that its agentic tool can stay on track for long tasks, keep a ...
Mashable

OpenAI launches GPT-5.2, claiming it hallucinates less and responds better to mental illness

The new model will start rolling out immediately. Credit: Photographed by Joseph Maldonado / Mashable Composite by Rene Ramos OpenAI announced today that it's launching GPT-5.2, the newest model in ...
MacRumors

OpenAI Launches GPT-5.2 for ChatGPT Users a Week After Declaring 'Code Red'

Just a month after introducing GPT 5.1, OpenAI introduced GPT-5.2, the next-generation model that will power its popular chatbot. GPT-5.2 is OpenAI's "most capable model series yet for professional ...
The Verge

GPT-5.2 is OpenAI’s latest move in the agentic AI battle

According to OpenAI, its new model ‘hallucinates less’ and is more accurate than GPT-5.1. According to OpenAI, its new model ‘hallucinates less’ and is more accurate than GPT-5.1. is The Verge’s ...
9to5Mac

OpenAI releases ‘code red’ GPT-5.2 update to ChatGPT: ‘most capable model series yet’

OpenAI has officially announced its GPT-5.2 upgrade to ChatGPT. This is the so-called “code red” reaction to Google Gemini that OpenAI calls its “most capable model series yet for professional ...
Engadget

OpenAI releases GPT-5.2 to take on Google and Anthropic

OpenAI's "code red" response to Google's Gemini 3 Pro has arrived. On the same day the company announced a Sora licensing pact with Disney, it took the wraps off GPT-5.2. OpenAI is touting the new ...
Ars Technica

OpenAI releases GPT-5.2 after “code red” Google threat alert

On Thursday, OpenAI released GPT-5.2, its newest family of AI models for ChatGPT, in three versions called Instant, Thinking, and Pro. The release follows CEO Sam Altman’s internal “code red” memo ...
Reuters

OpenAI launches GPT-5.2 after 'code red' push to counter Google's Gemini 3

Dec 11 (Reuters) - OpenAI on Thursday launched its GPT-5.2 artificial intelligence model, after CEO Sam Altman reportedly issued an internal "code red" in early December pausing non‑core projects and ...
TechCrunch

OpenAI fires back at Google with GPT-5.2 after ‘code red’ memo

OpenAI launched its latest frontier model, GPT-5.2, on Thursday amid increasing competition from Google, pitching it as its most advanced model yet and one designed for developers and everyday ...
ZDNet

Are GPT-5.2's new powers enough to surpass Gemini 3? Try it and see

OpenAI released GPT-5.2, its latest model, on Thursday. It fastracked the model to stay competitive with Google and Anthropic. GPT-5.2 is built for professional tasks and rivals experts. After a week ...
GitHub

Reinforcement Learning: An Introduction

If you have any confusion about the code or want to report a bug, please open an issue instead of emailing me directly, and unfortunately I do not have exercise answers for the book.