Arbitrum and Solana co-founders debated the fee model and underlying network selection for Robinhood Chain

The founder of Arbitrum, Steven Goldfeder, and Solana co-founder, Toly, engaged in a debate over the fee model of Robinhood Chain. Toly claimed that the 10% revenue share paid to Arbitrum by Robinhood Chain is sufficient to cover four times the transaction fees on the Solana chain, suggesting that if deployed on Solana, user gas fees could significantly decrease. In response, Goldfeder stated that Robinhood could retain about 90% of gas revenue under the Arbitrum architecture, thus choosing Arbitrum to "be the landlord, not the tenant."

Toly countered that Robinhood could charge fees at the application front end while utilizing a lower-cost underlying network; Goldfeder, however, indicated that a large amount of on-chain activity does not go through the Robinhood front end, and if it were merely a "tenant" of the underlying network, Robinhood would not be able to capture the revenue generated from these peripheral activities.

According to market news, Robinhood evaluated both Solana and Arbitrum during the product initiation phase and ultimately chose Arbitrum, which allows for independent chain deployment.