StepFun 3.5 Flash Ranked #1 Cost-Effective Model for OpenClaw Agent Tasks

OpenClaw / Hacker News·medium signal

StepFun's 3.5 Flash — a 196B-parameter sparse MoE that activates only 11B parameters per token — topped the OpenClaw cost-effectiveness leaderboard across 300 battles. At $0.10/M input and $0.30/M output tokens via OpenRouter, it delivers strong agentic benchmark scores (tau2) and has processed 2.2 trillion tokens on the platform. 168 points and 81 comments on HN signal genuine practitioner interest in cheap-but-capable agent models.