GPT-5.2-CODEX IS NOW AVAILABLE IN THE RESPONSES API

Summary from the TLDR AI newsletter

GPT-5.2-Codex is an upgraded version of GPT-5.2 optimized for agentic coding tasks in Codex and similar environments. It supports four levels of reasoning effort settings and has a 400,000-token context window. The model costs $1.75 per million input tokens and $14.00 per million output tokens. It is now available in the Responses API.