Mystery Stealth Model Space Bunny Alpha Hits OpenRouter Free With 1M Context
heyshrutimishra · x · 2026-09-26
A new anonymous "stealth" model, Space Bunny Alpha, is live and free on OpenRouter:
- 1M-token context window with native multimodal input (text, image, video)
- Adjustable reasoning effort and tool calling support
- Positioned as fast-inference with strong coding capabilities
- Developed by an unnamed third party; prompts may be retained but are not used for training, per Stealth Model Terms
The author also notes OpenCode is offering a zero-data-retention free preview this week. Stealth models like this are typically pre-release stress tests ahead of a public launch — worth guessing who's behind it.
Related event: Mystery stealth model Space Bunny Alpha lands free on OpenRouter(2 posts)→
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