Qwen3.7-Max Review: #1 Chinese Model, Anthropic API Compatible, 35-Hour Autonomous Run

Alibaba's Qwen3.7-Max (May 19, 2026) is a reasoning-first agentic model with a 1M-token context window, $2.50/$7.50 API pricing, and native Anthropic API protocol compatibility. Benchmarks challenge Claude Opus-4.6 on GPQA Diamond (92.4 vs 91.3), HLE (41.4 vs 40.0), and SWE-Verified (80.4 vs 80.8). Highest-ranked Chinese model on the Artificial Analysis Intelligence Index at 56.6. Self-reported 35-hour fully autonomous kernel optimization demo. No open weights yet. Rating: 4/5.