OpenAI Codex
OpenAI's agentic coding tool (CLI, IDE extension, cloud agent), billed via ChatGPT plans or the API.
At a Glance
OpenAI Codex is an AI tool for Coding assistants & IDEs (category: Development & Code). Free access: Free plan. Documented: 7 plans with prices and limits.
- Category
- Coding assistants & IDEs
- Paid from
- 20 $ per user per month billed annually (25 $ per user per month billed monthly; from 2 users) / per user per month, billed annually or monthly (Business)
- Free Option
- Free plan
- Plans
- 7
- Sources
- 7 verified sources
Category: Development & Code · Coding assistants & IDEs
Features
OpenAI Codex is OpenAI’s agentic coding tool (CLI, IDE, cloud, iOS). With GPT-6 Astra, OpenAI targets more demanding coding and multi-step workflows; access is rolling out on a limited basis first.
Usage is tied to a ChatGPT plan or the API, not a separate Codex subscription. Plan limits are in the pricing table.
- Agentic coding via CLI, IDE extension, web/cloud, and iOS
- GPT-6 Astra for demanding coding and repository tasks (rollout in progress)
- Read repositories, propose changes, and carry out tasks
- Billed through ChatGPT plans (Free through Pro/Business) or the API
- Included with a ChatGPT subscription; no separate Codex fee
Prices and plans
| Tier | Price | Period | What you get |
|---|---|---|---|
| Free | free | Month | Explore Codex on quick coding tasks |
| Go | 8 $ | Month | Lightweight coding tasks |
| Plus | 20 $ | Month | Web, CLI, IDE, iOS, cloud review, Slack |
| Pro 100 | 100 $ | Month | 100 USD a month. Codex shares the ChatGPT Pro allowance. Ultrafast is not included. |
| Pro 200 | 200 $ | Month | 200 USD a month. Codex shares the ChatGPT Pro allowance. Ultrafast is not included. |
| Pro 500 | 500 $ | Month | 500 USD a month. Astra Ultrafast is included on this Pro plan. Codex shares the ChatGPT Pro allowance. |
| Business | 20 $ per user per month billed annually (25 $ per user per month billed monthly; from 2 users) | per user per month, billed annually or monthly | SSO/MFA, no training on business data by default |
Prices per vendor, excl. taxes/VAT where applicable.
Limits
Prices are on the official Codex pricing page (learn.chatgpt.com/docs/pricing), not the ChatGPT card. Enterprise/Edu on request. Also, accessible via a personal API key, billed at standard API token rates instead of a subscription. Listed separately from ChatGPT and Claude Code. Codex Pro costs 100, 200, or 500 USD a month. Astra Ultrafast is only on the highest plan. Codex is not the ChatGPT seat.
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FAQ
Is OpenAI Codex available for free?
Yes. A permanently free plan is published, not a time-limited trial.
Where is the vendor of OpenAI Codex based?
OpenAI is based in the USA. Regardless of that location, data processing and privacy terms are governed by the vendor's own contract.
How is OpenAI Codex billed?
Prices are on the official Codex pricing page (learn.chatgpt.com/docs/pricing), not on the ChatGPT card. Enterprise/Edu on request. Access is also possible with your own API key, in which case standard API token prices apply instead of a subscription. Standalone catalog entry, separate from ChatGPT and Claude Code. Pro plans: USD 100, 200 or 500 per month. Astra Ultrafast only on Pro 500.
What plans does OpenAI Codex offer?
The catalog documents 7 plans with price, billing period, and included features.
Is OpenAI Codex currently available?
OpenAI Codex is still active: Active.
How we compare
We compare free access, paid entry, plan limits, features and the listed official sources. Unsourced figures stay marked as not published.
Only confirmed entries appear in the catalog. Prices, plans and limits come from listed official vendor pages. Missing figures stay marked as not published. Search results are ordered by Task match by default; category and task lists are alphabetical. Both can be switched to Free access first; neither is a quality ranking. The vendor page always wins.
Edited and checked by the AI Compare Ninja team
Sources
All details regarding plans, limits, and features are based on official vendor documentation and the primary sources verified below.
- https://learn.chatgpt.com/docs/pricing
- https://openai.com/codex/
- https://developers.openai.com/api/docs/guides/latest-model
- https://developers.openai.com/api/docs/models/gpt-6-astra
- https://help.openai.com/en/articles/6825453-chatgpt-plus-faq
- https://deploymentsafety.openai.com/gpt-6-astra
- https://openai.com/index/path-to-astra/
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