Responses API

GPT-5.2-Codex AI model analyzing complex code, refactoring software, and identifying security vulnerabilities in a modern development environment.

GPT-5.2-Codex: Advanced AI Model for Complex Coding Tasks

January 16, 2026

GPT-5.2-Codex is now available via the Responses API, providing a powerful, focused code AI model for developers who need assistance […]

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Open Responses visual showing a unified open-source framework connecting multiple LLM providers through interoperable AI workflows and standardized APIs.

Open Responses: Open-Source Standard for LLM Interoperability

January 16, 2026

The fields of large language models (LLMs) and generative AI are rapidly changing. As developers develop ever more complex applications –

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