Claude Sonnet 5.5 vs Qwen 4 Max (Leaked Staging)
A direct, empirical evaluation of Claude Sonnet 5.5 (Anthropic) against Qwen 4 Max (Leaked Staging) (Alibaba Cloud).
Claude Sonnet 5.5
Developed by Anthropic · Proprietary Frontier Dynamic Hybrid Reasoner parameters
Terminal-Bench 4.0 execution (70.6%), SWE-bench Verified coding (82.4%), GitHub Copilot multi-file edits, and low-latency autonomous agentic coding at $2/$10 pricing.
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.
| Metric | Claude Sonnet 5.5 | Qwen 4 Max (Leaked Staging) |
|---|---|---|
| SWE-bench Verified | 82.4% | 78.6% |
| MMLU-Pro | 88.4% | 91.4% |
| MATH-500 | 95.2% | 95.6% |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $2.00 | $1.20 |
| Output Pricing (per 1M) | $10.00 | $4.80 |