Mystery stealth model Space Bunny goes free across platforms with 1M context and multimodal input

Starting September 24, an unidentified stealth model called "Space Bunny" (shown as Space Bunny Alpha / Stealth Bunny Alpha on some platforms) has been temporarily free on multiple platforms, triggering intense community testing and speculation.

Confirmed

• opencode announced the model is free for one week, highlighting a 1M context window, multimodal capabilities, and Zero Data Retention.
• Cline officially announced the model's free launch, with features including fast reasoning, strong coding ability, multimodal input, and 1 million token context.
• The model also launched on OpenRouter with adjustable reasoning, accepting text, image, and video input, and is available free on Nous Portal.
• Command Code launched a model under the same name, free on all paid plans, featuring 1M token context and multimodal capabilities.
• User omarsar0 tested vision-related tasks and observed self-verification behavior: with a browser available, it opens pages, screenshots them to check, corrects itself, then declares completion; he also generated a playable 3D game directly from a hand-drawn sketch.
• User iamfakhrealam generated the complete game "Space Hop" from a single prompt: a bunny hopping across neon space rocks collecting carrots, running smoothly at 60fps with details like particle trails and a glass-style menu.

Unconfirmed

• Developer saheedniyi02 speculated the model might be Kimi; this is purely personal conjecture, and the model's true identity remains officially unconfirmed.

Why it matters

• The combination of 1M token context, multimodal input, Zero Data Retention, and free access is rare among stealth models of this kind, drawing lots of developers to test it.
• The case of generating a playable 60fps game from a single prompt shows its ceiling in coding and visual generation, and is the focal point of community discussion.

2026-09-24 ~ 2026-09-25 · 6 related posts

• Mystery model Space Bunny goes free for a week with 1M context and zero data retention — cedric_chee · 2026-09-24
• Stealth model Stealth Bunny Alpha goes free in Cline with 1M-token context — airesearch12 · 2026-09-24
• [source] Stealth Model Space Bunny Free on OpenCode: One-Prompt Full Game, 1M Context, Zero Retention — iamfakhrealam · 2026-09-24
• [source] Mystery model Space Bunny turns hand-drawn sketches into playable 3D games — omarsar0 · 2026-09-25
• Command Code's free stealth model Space Bunny Alpha suspected to be Kimi — Arindam_1729 · 2026-09-25
• Mystery model Space Bunny Alpha debuts with 1M context, free on Nous Portal — NousResearch · 2026-09-25