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Codex + GPT-5.5

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

ARscore 69.41M context$6/$25mixed stack
AgentCodex
ModelGPT-5.5
Agent score84
Model SWE-bench82.6%
Combined score69.4
Best fitOpenAI ecosystem workflows, terminal automation, and CI-style editing

Related Codex stacks

Same agent, different model choices.

Codex + GPT-5.3 Codex

ARscore 63.2, 128K context, $5/$20

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Related GPT-5.5 stacks

Same model, different agent wrappers.

Cursor + GPT-5.5

ARscore 58.6, IDE workflow

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Devin + GPT-5.5

ARscore 50.4, Cloud workflow

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Windsurf + GPT-5.5

ARscore 48.7, IDE workflow

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Copilot + GPT-5.5

ARscore 43, IDE workflow

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