GPT-5.5 Unveiled: A New Standard in Coding, Science and Security

GPT-5.5 Unveiled: A New Standard in Coding, Science and Security

OpenAI has announced GPT-5.5, its smartest and most intuitive model to date. Introduced as β€œa new class of intelligence,” it is poised to fundamentally change how we get work done on a computer. πŸš€ Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex. pic.twitter.com/rPLTk99ZH5 ...

April 23, 2026 ·  14 min ·  2884 words
What is GPT-5.3-Codex? OpenAI's Most Powerful Coding Agent

What is GPT-5.3-Codex? OpenAI's Most Powerful Coding Agent

Hello everyone! 😁 OpenAI announced a brand new model called GPT-5.3-Codex on February 5, 2026, and believe me, this model is truly a game-changer! πŸš€ What is GPT-5.3-Codex? GPT-5.3-Codex is the most capable agentic coding model that OpenAI has developed to date. We previously wrote about the OpenAI Codex App , and now we have the most powerful model behind this platform! So what does β€œagentic” mean? The model doesn’t just write code for you; it can also take on long-running tasks like a colleague, conduct research, use tools, and execute complex operations. ...

February 5, 2026 ·  5 min ·  870 words