Muse Spark 1.3 (xhigh) vs Space Bunny Alpha (Stealth)
A direct, empirical evaluation of Muse Spark 1.3 (xhigh) (Meta AI) against Space Bunny Alpha (Stealth) (MiniMax (Unannounced Stealth Release via OpenRouter)).
Muse Spark 1.3 (xhigh)
Developed by Meta AI · Proprietary Multimodal parameters
Autonomous codebase refactoring, terminal execution, million-token long context retrieval, and agentic workflows.
Space Bunny Alpha (Stealth)
Developed by MiniMax (Unannounced Stealth Release via OpenRouter) · Proprietary Omni-Modal Frontier Architecture parameters
Massive 512K output codebases, single-shot 3D voxel world generation, native audio/video multimodal debugging, and high-context software synthesis.
| Metric | Muse Spark 1.3 (xhigh) | Space Bunny Alpha (Stealth) |
|---|---|---|
| SWE-bench Verified | 75.4% | 65.4% |
| MMLU-Pro | 88.4% | 86.2% |
| MATH-500 | 94.8% | 92.8% |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $1.25 | $0.00 |
| Output Pricing (per 1M) | $5.00 | $0.00 |