Based on data from OpenRouter, the world's leading AI model API aggregation platform, the Step3.5 Flash model developed by JieYue Stars has claimed the number one position globally in terms of invocation volume on OpenClaw for three consecutive days. Since March 2026, models like Kimi K2.5, Step3.5 Flash, and MiniMax M2.5 have consistently ranked within the top three globally, signifying the collective ascent of Chinese-developed large-scale AI models. Step3.5 Flash adopts a sparse Mixture-of-Experts (MoE) architecture, boasting a total of 196 billion parameters. However, during the inference process, it activates only around 11 billion parameters. It attains a maximum inference speed of up to 350 TPS for single-request code tasks. This model is specifically tailored for agent scenarios and demonstrates exceptional performance in complex reasoning and long-chain tasks.
