GPT-5.3-Codex being routed to GPT-5.2 (github.com)

A recent issue reported by users of the Codex Command Line Interface (CLI) reveals that requests intended for the latest model, GPT-5.3-Codex, are instead being routed to the previous version, GPT-5.2. Despite users setting their configurations to use the GPT-5.3 model, log outputs indicate responses are being generated by the older version, signifying a potential misalignment between user settings and the model endpoint. This situation is significant for the AI/ML community as it highlights the challenges in version control and model deployment within cloud-based AI systems. Accurate model selection is crucial for developers who rely on the latest advancements in natural language processing to enhance functionality and performance. The misrouting could lead to inconsistent user experiences and hinder the testing of new features, emphasizing the need for improved debug mechanisms and communication from developers regarding model availability and updates.