Step3.7Flash, an open-source model under Apache 2.0, launched for Agent era tasks. It achieves top benchmarks: first in ClawEval and SimpleVQA Search, with 400 TPS reasoning speed, 198B sparse MoE (11B active), 256K context, and three reasoning levels. Multimodal perception-action loop enables UI understanding, code generation, and tool calls with over 98% success. Compatible with major agent frameworks and supports local deployment.