GPT-5.2-Codex

GPT-5.2-Codex

OpenAI

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

What is GPT-5.2-Codex?

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

Specifications

  • Developer: OpenAI
  • Context window: 400K tokens
  • Max output: 128K tokens
  • Input modalities: text, image
  • Output modalities: text
  • Input price: $1.75 per 1M tokens
  • Output price: $14.00 per 1M tokens
  • Knowledge cutoff:
  • Supported parameters: include_reasoning, max_completion_tokens, max_tokens, reasoning, response_format, seed, structured_outputs, tool_choice, tools

Use GPT-5.2-Codex with PromptLayer

PromptLayer lets teams manage, evaluate, and observe prompts that run on GPT-5.2-Codex alongside every other model in their stack. Version prompts, run evals across models, and ship safe rollouts from the same dashboard.

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