Coinbase CEO Brian Armstrong shared a dataset on September 25 showing Grok as the dominant harness for agentic trading on Coinbase, the largest US crypto exchange. Grok accounts for 59.5% of the agentic traders using Coinbase for Agents, the June-launched feature that lets AI agents trade, pay, and run workflows inside preset limits. Musk acknowledged the lead with a one-word post: "Cool."

Custom models trail at 21.7%, followed by Anthropic's Claude at 13.4%, Perplexity at 3.5%, and OpenAI's ChatGPT at just 1.5%. The figures are a striking early datapoint in the agentic-commerce race, with Grok far ahead of every rival lab. The numbers come from Armstrong's public dataset as reported by TheStreet.