Codex alternative
Pumpkin vs Codex
Codex is OpenAI's coding agent. Pumpkin is an independent editor that can use your Codex subscription and run other providers' models beside it.
Side by side
| Topic | Pumpkin | Codex |
|---|---|---|
| Who makes it | Independent. Built by developers at Ezoic; no model company owns it. | OpenAI. |
| Sign-in and billing | Your own provider keys with no Pumpkin markup, supported subscriptions, or optional Pumpkin credits. | OpenAI's docs list two sign-ins: ChatGPT for subscription access, or an API key for usage-based access. Codex cloud requires ChatGPT sign-in. |
| Your Codex subscription | Connect your Codex subscription in Pumpkin and use its quota first. | Uses your ChatGPT plan directly. |
| Models | OpenAI, Anthropic, xAI, Google Gemini, Meta, Fireworks, Amazon Bedrock, and a local model, chosen per chat or by Auto. | Built around OpenAI models. OpenAI's docs also cover gateways and Amazon Bedrock setups. |
| Where you work | A desktop editor for Windows, macOS, and Linux, with SSH and WSL workspaces and remote access. | The ChatGPT desktop app, Codex CLI, IDE extension, and Codex cloud. |
Pumpkin fits when
- You want to keep your Codex subscription and still use Claude, Gemini, Grok, or open models.
- You want a full editor with custom process steps, rules, skills, and loops.
- You want your editor independent of the model vendor.
Codex may fit better when
- You work mostly with OpenAI models and want Codex cloud tasks tied to your ChatGPT workspace.
- Your organization manages AI tools through ChatGPT workspace controls.
Sources
Codex details come from these pages, checked October 7, 2026. Products change, so check them before you decide.