Step 3.5 Flash topped the OpenClaw API Call Leaderboard for three consecutive days, with Chinese models taking three of the top five spots.

According to 1M AI News monitoring, the large-model API aggregation platform OpenRouter's data shows that AI company ArchVortex's Step 3.5 Flash ranked first in the daily model call volume of the open-source AI assistant framework OpenClaw for three consecutive days from March 4 to 6, with a daily call volume of 613 billion tokens on March 5.

Following closely behind are MiniMax M2.5, Arcee AI's Trinity Large Preview, DarkSideOfTheMoon's Kimi K2.5, and Anthropic's Claude Sonnet 4.6, with Chinese models occupying three of the top five spots.