Codex vs Amp

Prices checked on official pricing pages Oct 13, 2026.

CodexAmp
PriceIncluded in ChatGPT Free (limited); Plus $20/mo; Pro from $100/moUsage-based; plans check site
Free optionClaude Code / Gemini CLI / Cursor FreeSign in with ChatGPT Plus/Pro for OpenAI models (check site)
ModelsOpenAI onlyMulti-model
Best forChatGPT users, background PRsCloud agents across devices
Try CodexTry Amp

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Verdict

On ChatGPT already: Codex. Want multi-model cloud agents: Amp (and it can use your ChatGPT plan).

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