Tencent Hy4 AI Model Ranks No. 1 on CWE-Bench Security Test

Tencent's Hy4 AI model scored 76% on the CWE-Bench-AA test for finding and fixing software vulnerabilities. This score surpassed DeepSeek V4.1 Flash 1017 by 6 points. The Hy4 model costs $0.92 per task and uses 64k output tokens per task.