Codex, OpenAI and GPT-5.4
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OpenAI has released GPT-5.5, its first base model trained entirely from scratch, featuring advanced 'agentic' capabilities to autonomously handle complex coding, data analysis, and financial workflows. The model can process massive datasets, navigate ...
Morning Overview on MSN
OpenAI launches GPT-5.5, its first fully retrained base model
OpenAI on April 24, 2026, released GPT-5.5, calling it the company’s first base model trained entirely from scratch rather than fine-tuned on top of an earlier system. The launch focuses squarely on agentic coding,
GPT‑5.5 advances agentic AI by independently managing intricate workflows in science and engineering,. OpenAI pairs this capability with safety protocols to manage emerging cybersecurity and biological risks.
Through this partnership Cognizant and OpenAI aim to work together to bring AI-powered engineering, modernization and security compliance capabilities to clients across industries, with a focus on reducing complexity, accelerating delivery and building the governance rigor necessary for enterprise scale adoption.
OpenAI is releasing a new version of its Codex desktop app today. The latest Codex update adds three key features that expand its use beyond agentic coding. Today’s release signals the start of a shift for Codex.