# Codex

Codex is OpenAI's coding agent for software engineering tasks such as writing code and fixing bugs. It is offered as an open-source command-line tool, an IDE extension, a desktop app, a cloud agent that returns changes as pull requests, and an SDK for CI/CD pipelines. Codex Security is a separate agent that scans for vulnerabilities and proposes fixes.

Page: https://slateindex.ai/brand/codex · data of 2026-11-03

## Facts

- Founded: 2025
- Company type: Division of OpenAI
- Deployment: Cloud-hosted agent, with local CLI, IDE extension and desktop app surfaces.
- Best for: Software engineers who want an AI agent to handle coding tasks such as writing code and fixing bugs.

## Products

- Codex CLI: Open-source, Apache-2.0 licensed command-line coding agent, written mostly in Rust.
- Codex cloud agent: Runs coding tasks in a sandboxed cloud environment and returns changes as pull requests for review.
- Codex IDE extension: Codex inside the integrated development environment.
- Codex desktop app: Desktop application for Codex, merged into the ChatGPT desktop app in July 2026.
- Codex SDK: SDK for embedding Codex in CI/CD pipelines.
- Codex Security: Application-security agent that scans for vulnerabilities and proposes fixes.

## Rankings

| Category | Rank | Visibility | Mentions |
|---|---|---|---|
| AI Coding Assistants | 4 of 46 | 20.9 | 28 |

## By engine

| Engine | Visibility | Mention rate |
|---|---|---|
| chatgpt | 35.6 | 59.3% |
| google_ai_mode | 10.4 | 14.8% |
| perplexity | 16.9 | 29.6% |

## Definitions

- Visibility (0–100): how often and how high AI answers name the brand, weighted by position.
- Mention rate: share of collected AI answers that name the brand.
- Share of voice: the brand's mentions as a share of all brand mentions in the category.
- Citation authority: share of answers naming the brand that cite the brand's own site.

Cite as: SlateIndex, “Codex AI visibility profile”, https://slateindex.ai/brand/codex, data of 2026-11-03. Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).