Name: Codex
Brand: OpenAI
Price: 1.00 USD
Availability: InStock

Question 1

What is Codex?

Accepted Answer

Codex is an agentic coding assistant from OpenAI that can navigate repositories, edit files, run commands and tests, and generate pull requests. It runs both locally (CLI and IDE extensions) and in sandboxed cloud containers that you can configure with code and dependencies, allowing background and parallel task execution. Codex uses specialized models (e.g., GPT‑5‑Codex) optimized for complex engineering tasks—feature implementation, debugging, refactoring, and code review—while defaulting to security-minded sandboxing and restricted network access to reduce exfiltration and misuse. It integrates with GitHub and common IDEs (VSCode, Cursor, Windsurf) and is included with OpenAI/ChatGPT subscription tiers for collaborative and automated development workflows.

Question 2

How much does Codex cost?

Accepted Answer

Codex is a paid service with various pricing tiers.

Question 3

Who developed Codex?

Accepted Answer

Codex was developed by OpenAI. OpenAI is an AI research and deployment organization that builds advanced models, developer APIs, and tools to enable safe and useful AI applications.

Question 4

What are the key features of Codex?

Accepted Answer

Codex offers the following key features: Repo Navigation and Editing: Reads your repository, locates relevant files, edits code, generates commits, and drafts pull requests that can be reviewed and merged., Cloud Sandbox Execution: Provisions isolated cloud containers with specified code and dependencies to run tasks, execute tests, and validate changes without exposing your machine., IDE & CLI Integration: Provides a CLI and IDE extensions (officially supported in VSCode, Cursor, Windsurf) to pair-program, run commands, and move work between local and cloud contexts., Parallel Background Tasks: Executes multiple tasks in the background and preserves task state, enabling Codex to work across devices and continue long-running jobs without interrupting the user., GPT‑5‑Codex Optimized Model: Uses a model variant tuned for agentic software engineering—better at building projects, refactoring, testing, and following high-level instructions without verbose prompts., Security and Data Protections: Defaults to sandboxed environments with network access disabled and other protections to limit code/data exfiltration and mitigate prompt-injection risks., Configurable Environments: Lets users specify environments and dependencies for each cloud task so Codex operates with deterministic context for builds and tests., GitHub Integration & PR Automation: Can connect with your GitHub account to create branches, open pull requests, and propose changes directly from its generated work., Read, navigate, edit, and execute code inside repositories, Provision isolated sandboxed cloud containers per task with repo and dependencies, CLI tool for local terminal interaction, IDE extensions (recommended/available for VSCode, Cursor, Windsurf), Integrates with GitHub to access repos and create pull requests, Runs tasks in background and in parallel, preserving state across sessions, Default recommended model GPT-5 (GPT‑5‑Codex) with selectable reasoning level, Security-first defaults: sandboxing and network access disabled by default to reduce exfiltration risk and prompt injections, Ability to authenticate via API key to use older models.

Codex

Codex

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