Llama 3.3 70B vs Union Alpha (Stealth)
A direct, empirical evaluation of Llama 3.3 70B (Meta AI) against Union Alpha (Stealth) (OpenRouter & OpenCode).
Llama 3.3 70B
Developed by Meta AI · 70.6B parameters
Self-hosted on-premise deployments and edge dense inference.
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 | Llama 3.3 70B | Union Alpha (Stealth) |
|---|---|---|
| SWE-bench Verified | 38.8% | 74.2% |
| MMLU-Pro | 68.3% | 89.8% |
| MATH-500 | 75.8% | 95.4% |
| Context Window | 128,000 tokens | 256,000 tokens |
| Input Pricing (per 1M) | $0.15 | $0.00 |
| Output Pricing (per 1M) | $0.60 | $0.00 |