# Codex by ChatGPT

> Cloud agent that writes code, fixes bugs, and opens PRs

Codex is a cloud-based AI software agent built on OpenAI's Codex-1 model that handles development tasks such as writing features, fixing bugs, answering code questions, and proposing pull requests. Each task runs in a separate sandboxed environment preloaded with your repository, enabling parallel workstreams without local setup. It is designed for software developers who want to delegate routine coding tasks to an autonomous agent.

## At a glance

- **Company**: OpenAI
- **Homepage**: https://www.producthunt.com/r/NAFFLULAS5MG3Q?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+claude+access+%28ID%3A+284460%29
- **Pricing**: usage-based
- **API available**: Yes
- **Self-hostable**: No
- **Launched**: 2025-05
- **Last verified**: 2026-05-11

## Categories

- agents
- code
- developer-platforms


## Capabilities

- multi-file-edit
- sandboxed-execution
- pull-request-generation
- parallel-task-execution
- repo-context
- bug-fixing


## Alternatives

- [GitHub Copilot](https://inforelay.ai/tools/github-copilot.md): AI code completion and chat assistant inside your editor
- [Cursor](https://inforelay.ai/tools/cursor.md): VS Code fork with deep AI coding and multi-file editing



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Source: https://inforelay.ai/tools/codex-by-chatgpt/
Index: https://inforelay.ai/llms.txt