Claude Opus 5.5 (Canary Checkpoint) vs Qwen 4 Max (Leaked Staging)

A direct, empirical evaluation of Claude Opus 5.5 (Canary Checkpoint) (Anthropic) against Qwen 4 Max (Leaked Staging) (Alibaba Cloud).

Claude Opus 5.5 (Canary Checkpoint)

Developed by Anthropic · Frontier Mixture-of-Experts Architecture parameters

Autonomous repository issue resolution (81.4% SWE-bench Verified), native 3D glTF/OBJ mesh synthesis, and sub-300ms time-to-first-token.

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 Opus 5.5 (Canary Checkpoint) Qwen 4 Max (Leaked Staging)
SWE-bench Verified 81.4% 78.6%
MMLU-Pro 94.2% 91.4%
MATH-500 97.9% 95.6%
Context Window 1,000,000 tokens 1,000,000 tokens
Input Pricing (per 1M) $5.00 $1.20
Output Pricing (per 1M) $25.00 $4.80