Space Bunny Alpha in Cursor
Cursor lets you add a custom OpenAI-compatible model, and Space Bunny Alpha slots right in — override the OpenAI base URL to our endpoint, add the model space-bunny-alpha, and you're coding on a fast, 1M-context model that's free during preview.
Every example needs a free sb_live_ key. Get one free →
Space Bunny Alpha is OpenAI Chat Completions-compatible, and Cursor's model settings let you override the OpenAI base URL and register custom model names. Put those together and Cursor's chat and agent both run on Space Bunny — a fast model with a 1,000,000-token context window, strong coding, and no per-token bill during the preview.
Get a key
Grab a free sb_live_ key at /get-jev — you'll paste it into Cursor's OpenAI API key field.
Add it in Cursor settings
Open Cursor Settings → Models, then:
- Enable "Override OpenAI Base URL" and set it to https://spacebunnymodel.com/api/v1
- Set the OpenAI API Key to your sb_live_... key
- Under custom models, add a model named exactly space-bunny-alpha, then select it
- Save / verify — Cursor sends requests to /api/v1/chat/completions on our endpoint
A quick note: overriding the OpenAI base URL points all of Cursor's OpenAI-keyed traffic at our endpoint, so use a Cursor profile or switch the model back when you want to return to another provider. The base URL, the sb_live_ key, and the model name space-bunny-alpha are the only three values that matter.
Why it's good in Cursor
- 1M-token context: Cursor can feed it large files and long selections without truncating.
- Reasoning model with adjustable reasoning and strong coding — solid for multi-step edits and agent runs.
- Very fast and free during preview, so iterative Cursor loops stay cheap today.
- Native multimodal input upstream, if your Cursor workflow attaches images.
Config reference
If a value doesn't take, re-check the three constants — base URL https://spacebunnymodel.com/api/v1, an sb_live_ key, model space-bunny-alpha — against the current setup on the how-to-use page.
FAQ
How do I add Space Bunny Alpha to Cursor?
In Cursor Settings → Models, enable Override OpenAI Base URL and set it to https://spacebunnymodel.com/api/v1, paste an sb_live_ key as the OpenAI API key, add a custom model named space-bunny-alpha, and select it.
Do I need a paid key?
No — grab a free sb_live_ key at /get-jev. There's a free tier plus credit packs for higher limits, and the model is free during the OpenRouter preview.
Will this override my other Cursor models?
Overriding the OpenAI base URL redirects Cursor's OpenAI-keyed traffic to our endpoint, so use a separate profile or switch models back when you want another provider. The custom model itself is just named space-bunny-alpha.
Why use Space Bunny Alpha in Cursor?
A 1,000,000-token context window for large files, a fast reasoning model with strong coding, and no per-token bill during the preview — a capable free option for day-to-day Cursor work.
See also: Get a free API key · Claude Code integration · How to call the API
Start using Space Bunny Alpha
Try it free in the browser, then grab a key and drop it into your setup.