OpenAI Releases GPT-5-Codex: Enhanced AI Coding Assistant for Software Development
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Summary
OpenAI has released GPT-5-Codex, an upgraded version of GPT-5 specifically optimized for agentic coding within the Codex platform. The new model is trained for real-world software engineering tasks, capable of both quick interactive sessions and handling long, complex coding tasks independently. It features enhanced code review capabilities to catch critical bugs before deployment. GPT-5-Codex is now the default for cloud tasks and code review, and available for local development via Codex CLI and IDE extensions, making it accessible across terminals, IDEs, web, and mobile devices.
Key quotes
· 4 pulledToday, we're releasing GPT-5-Codex—a version of GPT-5 further optimized for agentic coding in Codex
GPT-5-Codex was trained with a focus on real-world software engineering work; it's equally proficient at quick, interactive sessions and at independently powering through long, complex tasks
Its code review capability can catch critical bugs before they ship
GPT-5-Codex is available everywhere you use Codex—it's the default for cloud tasks and code review, and developers can choose to use it for local tasks via Codex CLI and the IDE extension
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