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This stealth model was developed and operated by MiniMax, revealed to be MiniMax M3.1 FlashOpens in new tab. Prompts and completions for this model may have been retained by the provider but are not used for training; all other use is governed by the Stealth Model TermsOpens in new tab.

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Space Bunny Alpha

stealth/space-bunny-alpha

Space Bunny Alpha is an anonymous large model with blazing-fast inference, strong coding capabilities and native multimodal input support. It delivers adjustable reasoning effort, and a 1M-token context window.

Space Bunny Alpha was a stealth model, revealed to be MiniMax M3.1 FlashOpens in new tab by MiniMax. OpenRouter routed requests to it and was not its developer, owner, or provider. Prompts and completions may be retained by the provider but are not used for training; all other use is governed by the Stealth Model TermsOpens in new tab. The free stealth period has ended; use MiniMax M3.1 Flash at https://openrouter.ai/minimax/minimax-m3.1-flashOpens in new tab.

Modalities
Context
1.0M
Released
Sep 23, 2026
ActivityFAQExplore

Activity

Token volume and request traffic to this model over time.

Not currently available through EU in-region routing. In-region routing docs

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Frequently asked questions

Space Bunny Alpha is an anonymous large model with blazing-fast inference, strong coding capabilities and native multimodal input support. It delivers adjustable reasoning effort, and a 1M-token context window. Space Bunny Alpha was a stealth model, revealed to be MiniMax M3.1 Flash by MiniMax. OpenRouter routed requests to it and was not its developer, owner, or provider.

Space Bunny Alpha has a 1,000,000 token context window.

Space Bunny Alpha accepts text, images, and video as input and returns text.

Space Bunny Alpha was released on September 23, 2026.

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Union Alpha

Union Alpha is a multimodal model built for research, coding, and agentic workflows, while delivering frontier-level performance across a broad range of general-purpose tasks.

Union Alpha was a stealth model, revealed to be Pareto by Unbiased. OpenRouter routed requests to it and was not its developer, owner, or provider. Prompts and completions may be retained by the provider but are not used for training; all other use is governed by the Stealth Model Terms. The free stealth period has ended; use Pareto at https://openrouter.ai/unbiased/pareto.

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Ox Alpha

Ox Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.

Ox Alpha is a stealth model. It is developed and operated by a third-party provider who has chosen to remain anonymous during this preview. OpenRouter routes requests to it and is not its developer, owner, or provider. Prompts and completions are retained by the provider and are not used for training; all other use is governed by the Stealth Model Terms.

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