GPT-6 Astra vs Space Bunny Alpha (Stealth)
A direct, empirical evaluation of GPT-6 Astra (OpenAI) against Space Bunny Alpha (Stealth) (MiniMax (Unannounced Stealth Release via OpenRouter)).
GPT-6 Astra
Developed by OpenAI · Proprietary Frontier parameters
Complex multi-step engineering, formal math proofs, autonomous computer/browser navigation, and CAD synthesis.
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 | GPT-6 Astra | Space Bunny Alpha (Stealth) |
|---|---|---|
| SWE-bench Verified | 79.4% | 65.4% |
| MMLU-Pro | 91.2% | 86.2% |
| MATH-500 | 98.6% | 92.8% |
| Context Window | 1,050,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $10.00 | $0.00 |
| Output Pricing (per 1M) | $50.00 | $0.00 |