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 with simple pay-per-token pricing.
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 simple pay-per-token pricing.
Get a key
Grab an sb_live_ key at /get-api-key — 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 prepaid per token from $5, 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?
Yes — the hosted API is prepaid, so top up from $5 to start, then pay per token at $0.50–$1.50 per 1M total tokens (prompt + completion).
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 simple pay-per-token pricing — a capable 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.