GLM-5-3 (Flagship) vs Space Bunny Alpha (Stealth)
A direct, empirical evaluation of GLM-5-3 (Flagship) (Zhipu AI & THUDM) against Space Bunny Alpha (Stealth) (MiniMax (Unannounced Stealth Release via OpenRouter)).
GLM-5-3 (Flagship)
Developed by Zhipu AI & THUDM · 744B parameters
Complex algorithmic reasoning, multi-step code synthesis, and long-horizon tool execution.
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 | GLM-5-3 (Flagship) | Space Bunny Alpha (Stealth) |
|---|---|---|
| SWE-bench Verified | 54.8% | 65.4% |
| MMLU-Pro | 78.4% | 86.2% |
| MATH-500 | 93.6% | 92.8% |
| Context Window | 256,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $0.55 | $0.00 |
| Output Pricing (per 1M) | $2.19 | $0.00 |