OpenAI has launched GPT-5.2 Codex, now accessible to developers via the Responses API, expanding its previous Codex environment limitations. This advanced model excels in managing complex coding tasks, such as feature development, code refactoring, and bug detection. Notably, it is recognized as OpenAI’s top cybersecurity model, efficiently identifying vulnerabilities in codebases. The GPT-5.2 Codex accepts both text and image inputs, providing four levels of reasoning effort: low, medium, high, and very high. The pricing structure is set at $1.75 per million input tokens and $14 per million output tokens, representing an increase from earlier versions. Coding platforms like Cursor and Windsurf have integrated this new model, with Windsurf offering a limited-time discount. OpenAI also released a prompting guide to assist users. For ongoing AI insights, consider subscribing to THE DECODER for ad-free content, newsletters, and exclusive reports.
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