OpenAI has released GPT-5.3-Codex, its most capable agentic coding model to date. Announced on February 5, 2026, this revolutionary model represents a significant leap forward in AI-powered software development, combining frontier coding performance with advanced reasoning and professional knowledge capabilities. Available through Codex desktop app, plugins, and pi-coding-agent authentication, GPT-5.3-Codex is transforming how developers interact with AI coding assistants.

OpenAI has released GPT-5-Codex, a specialized version of GPT-5 optimized specifically for agentic programming tasks. This powerful model excels at software engineering tasks, from quick interactive sessions to complex, long-running autonomous projects. Here's your complete guide to using GPT-5-Codex through its two primary interfaces: Codex CLI and IDE plugins.

GPT-5 has officially launched on August 7, 2026, bringing advanced reasoning capabilities and multimodal features to developers and users worldwide. With its release comes the crucial question: How much does GPT-5 cost? This comprehensive guide covers all pricing options, from free access to enterprise solutions.

OpenAI's GPT-OSS-120B is a groundbreaking open-weight large language model with approximately 117 billion parameters (5.1 billion active), designed to deliver powerful reasoning and agentic capabilities, including code execution and structured outputs. Unlike massive models requiring multiple GPUs, GPT-OSS-120B can run efficiently on a single Nvidia H100 GPU, making local deployment more accessible for organizations and advanced users seeking privacy, low latency, and control.

In today's rapidly evolving AI landscape, OpenAI continues to introduce new models to meet diverse user needs. As the newest member of the OpenAI model family, O4 Mini stands out with its exceptional value proposition. This article provides an in-depth analysis of O4 Mini's pricing strategy, helping you make more informed decisions.