OpenAI Codex: Pricing, Features & Alternatives (2026)
Build anything with Codex.
Overview
OpenAI describes Codex as a coding partner included in ChatGPT that takes on bugs, refactors, and new features, and runs many agents in parallel with computer and browser tools. The same agent is available in ChatGPT, an IDE extension, the terminal, and cloud environments that keep tasks running after the laptop is closed.
Pricing
- Pricing from
- From $20
- Price model
- Subscription
- Free tier
- No
- Trial
- No
https://openai.com/codex/ lists Plus at $20, Pro at $100, and Business at $20, and says Codex is included in the ChatGPT plan. The Business note on that page says for 2+ seats, billed annually. Last checked 5 October 2026.
Features
- Sold to run the job rather than wait for a prompt on every step. Keep a way to stop it before it reaches a customer, a candidate, or a filing.
- Integrations: ChatGPT, IDE extension, Terminal, Cloud environments, Plugins.
- Not sold as one named foundation model on the pages we opened.
Autonomy: Autonomous. Team size: Solo, Small team, Mid-market.
Pros
- Published starting price: From $20.
- Connects to ChatGPT, IDE extension, Terminal, Cloud environments.
- Teams already on ChatGPT who want parallel coding agents and pull-request review
Cons
- No free tier and no trial listed.
- Sold to operate the motion. Plan on supervising the first sends.
Who it is for
Teams already on ChatGPT who want parallel coding agents and pull-request review
Alternatives
Other products that appear in the same categories.
- Augment CodeFrom $20/mo
- Claude CodeFrom $17/mo
- ClineFree
- CursorFrom $20/mo
- DevinFree, then $20/mo
Sources
Where it ranks
- Best AI Coding Agents#5 of 10