# Codex — pricing, features, and fit

> OpenAI's coding agent, bundled into every ChatGPT plan from a thin free tier to Pro, now also exposed to developers through the Agents API. TestedActually has not published a full verdict on Codex yet — the verified numbers below are the short version.

Human page: https://testedactually.com/ai-coding-assistants/codex/
Mirror: https://testedactually.com/ai-coding-assistants/codex.md
Updated: 2026-09-24

Product site: https://openai.com

**Codex pricing (every row carries its source)**

| Tier | Price | Verified | Source |
| --- | --- | --- | --- |
| ChatGPT Plus (Codex bundled) | $20/mo | 2026-09-24 | [openai.com](https://openai.com/chatgpt/pricing/) |

Appears in:

- [Hub — AI coding assistants](/ai-coding-assistants/)
- [Benchmark — AI crawler access test: can answer engines read these vendors?](/ai-coding-assistants/benchmarks/ai-coding-assistants-ai-crawler-access/)

## Sources

- https://openai.com/chatgpt/pricing/ — checked 2026-09-24, confidence: unconfirmed
- https://openai.com/chatgpt/pricing/ — checked 2026-09-24, confidence: documented
- https://openai.com/codex/ — checked 2026-09-24, confidence: documented
- https://openai.com/index/introducing-the-agents-api/ — checked 2026-09-24, confidence: documented
- https://openai.com/ — checked 2026-09-24, confidence: unconfirmed