Coinbase CEO Brian Armstrong stated that Grok has become the leading AI for agent traders on the platform. This statement corresponds to the ranking of agent trading shares published by the company's developer platform: one week after integrating Grok, it rose to 25.3% nominal transaction share, making it the top named model.

The ranking flipped within a week. Previously, Perplexity held 26.8%, Claude 19.3%, Grok 15.3%, and ChatGPT only 1.1%. In the latest week, Grok rose to 25.3%, Perplexity fell to 21.6%, Claude dropped to 8%, ChatGPT increased to 6.1%, Claude Code was at 0.5%, and custom command lines still accounted for 38.5%. According to this metric, about $25 out of every $100 in reported agent transactions came from Grok links.

Coinbase for Agents has been natively launched on Grok and Perplexity, while other models are accessed through model context protocols. Users can issue trades, analyses, and automate workflows in natural language after searching for connectors on the Grok side and logging into their Coinbase accounts, without needing to configure protocols separately. Agents can operate main accounts or isolated sub-portfolios, with permissions defined by the users.

The product coverage has expanded from crypto spot and derivatives to U.S. stocks and exchange-traded funds, transacting through Coinbase's capital market channels and the same clearing and custody system, supporting intraday trading, fractional shares starting at $1, and zero commissions. Agents can also use the x402 protocol to pay per use for data, models, and research interfaces, integrating intelligence procurement and order placement into a single machine process.

Armstrong named this line "agent finance": AI provides programmable intelligence, while crypto offers programmable currency. The company has simultaneously launched wallets for agents, dollar stablecoin payments for enterprises, and Coinbase Advisor, which is registered with the SEC. He previously stated that the number of daily trades by agents will eventually surpass the total of human trades, and that the scale of the agent economy could exceed that of the human economy.

In market mechanisms, this is a competition for transaction entry, not model evaluation. Coinbase sells accounts, compliance channels, stablecoin clearing, and transaction fees; Grok sells the decision-making layer that connects to exchanges. Funding is shifting from manual orders and subscription research reports to a closed loop of "model calls—paying for intelligence—automated transactions." Beneficiaries include the model that captures the highest named share, exchanges that profit from price spreads and channel fees, and data sellers charging per use; those under pressure are brokerage interfaces that require manual clicks to complete, and other models that lost more than half their share within a week. Custom command lines still account for nearly 40%, indicating that professional funds have not fully handed over the keys to chat windows.

Source: Public Information