Qwen 4 Max (Leaked Staging) vs Union Alpha (Stealth)
A direct, empirical evaluation of Qwen 4 Max (Leaked Staging) (Alibaba Cloud) against Union Alpha (Stealth) (OpenRouter & OpenCode).
Qwen 4 Max (Leaked Staging)
Developed by Alibaba Cloud · 1.2 Trillion (Sparse MoE) parameters
Repository-scale software engineering outscoring GPT-6 Sol, multilingual enterprise agents across 120 languages, and low-cost 1M-token processing.
Union Alpha (Stealth)
Developed by OpenRouter & OpenCode · Multi-Model Ensemble Mixture parameters
Terminal coding agents, pull-request synthesis, multi-model consensus verification, and zero-cost autonomous refactoring.
| Metric | Qwen 4 Max (Leaked Staging) | Union Alpha (Stealth) |
|---|---|---|
| SWE-bench Verified | 78.6% | 74.2% |
| MMLU-Pro | 91.4% | 89.8% |
| MATH-500 | 95.6% | 95.4% |
| Context Window | 1,000,000 tokens | 256,000 tokens |
| Input Pricing (per 1M) | $1.20 | $0.00 |
| Output Pricing (per 1M) | $4.80 | $0.00 |