OpenAI Codex plans, pricing & usage limits

Codex is included in every ChatGPT plan and shares its allowance with ChatGPT Work.

VendorOpenAI

TypeCloud + CLI + IDE agent (bundled with ChatGPT subscription)

Free tierYes

Cheapest paidGo · $8/mo

Top tierPro 500 · $500/mo

How limits work

Per-5-hour message estimates on Plus; Pro has no 5-hour limit but weekly limits may apply. Extra usage via ChatGPT credits.

Limited Codex access; GPT-6 Luna at Standard speed in the desktop app, subject to rollout.

All OpenAI Codex plans

Tool	Plan	$/month	Usage limits	Resets	Models	Source
OpenAI Codex OpenAI	Free	Free	Limited; not quantified.	other unknown	GPT-6 Luna	developers.openai.com Oct 17, 2026
OpenAI Codex OpenAI	Go	$8	Limited; not quantified.	other unknown	GPT-6 Luna	developers.openai.com Oct 17, 2026
OpenAI Codex OpenAI	Plus	$20	Estimated local messages per 5 hours: GPT-6 Astra 5-45, GPT-6.1 Sol 15-160, GPT-6 Sol 15-150, GPT-6 Luna 350-3,000. Weekly limits may also apply.	5-hour weekly 5-hour window + weekly	GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-6 Astra (limited)	developers.openai.com Oct 17, 2026
OpenAI Codex OpenAI	Pro 100	$100	No 5-hour limit; weekly limits may apply. Exact allowance not published.	weekly Weekly (no 5-hour window)	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna	help.openai.com Oct 17, 2026
OpenAI Codex OpenAI	Pro 200	$200	More than Pro 100; no 5-hour limit; weekly limits may apply. Exact allowance not published. New subscriptions get a lower allowance than grandfathered ones.	weekly Weekly (no 5-hour window)	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna	help.openai.com Oct 17, 2026
OpenAI Codex OpenAI	Pro 500	$500	Highest of the three Pro plans; no 5-hour limit; weekly limits may apply. Exact allowance not published.	weekly Weekly (no 5-hour window)	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna	help.openai.com Oct 17, 2026

Free: Desktop app only, subject to rollout.
Go: Desktop app only, subject to rollout. Plan may include ads.
Plus: Codex web, CLI, IDE extension, iOS; cloud code review; extra usage via ChatGPT credits.
Pro 100: No Ultrafast.
Pro 200: No Ultrafast.
Pro 500: Includes Ultrafast (uses included usage at 8x Standard rate).