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ChatGPT Codex + GPT-5.3 Codex

A CLI agent plus hosted coding model stack for ChatGPT Codex workflows, terminal automation, and CI-style editing.

ARscore 63.2128K context$5/$20mixed stack
AgentChatGPT Codex
ModelGPT-5.3 Codex
Agent score84
Model SWE-bench75.2%
Combined score63.2
Best fitChatGPT Codex workflows, terminal automation, and CI-style editing

Related ChatGPT Codex stacks

Same agent, different model choices.

ChatGPT Codex + GPT-5.5

ARscore 69.4, 258K context, $6/$25

view stack

Related GPT-5.3 Codex stacks

Same model, different agent wrappers.