~ / stacks / codex-gpt-5-3-codex

Codex + GPT-5.3 Codex

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

AgentCodex
ModelGPT-5.3 Codex
Agent score84
Model SWE-bench75.2%
Combined score63.2
Best fitOpenAI ecosystem workflows, terminal automation, and CI-style editing

Related Codex stacks

Same agent, different model choices.

Codex + GPT-5.5

ARscore 69.4, 1M context, $6/$25

view stack

Related GPT-5.3 Codex stacks

Same model, different agent wrappers.