Gearbox vs Project 0: Which lending model fits? (2026)

Gearbox and Project 0 both provide lending, but their borrowing models and reach differ. Gearbox offers isolated credit accounts that can use supported DeFi protocols, with leverage up to 10x. It operates across eleven networks, making it the broader option for users who want to choose among multiple chains and markets.

Project 0 is built for Solana. Its Unified Borrow product is designed to let users borrow against a portfolio spread across several venues rather than relying on collateral in one venue. It also shows markets for assets including SOL, WBTC, ETH and cbBTC. That cross-venue approach is Project 0's clearest distinction, but it can also bring risks from each venue involved.

In short, choose based on the borrowing structure you need: Gearbox for isolated, leveraged accounts across supported chains; Project 0 for portfolio-based borrowing on Solana.

Gearbox's central feature is the credit account: a segregated account with rules for permitted tokens, transfers, roles and risk limits. Users can borrow with up to 10x leverage and use the account across supported protocols. The protocol also supports complex collateral such as LP tokens, vault shares and PTs. Its tokenised-asset features include compliance controls, and its prime brokerage product is for approved participants.

Project 0 instead emphasizes Unified Borrow, which aims to calculate borrowing capacity across a user's DeFi portfolio. Its Markets page offers Lend and Unified Borrow views, with filters for venue, asset group and market. The navigation also includes Strategies, Vaults, Stake, Pay and Portfolio, but public details for several of these functions are limited.

Gearbox is the more clearly described choice for users who want isolated leveraged accounts. Project 0 may suit users who value a single borrowing view over positions held across venues, provided they understand the added dependencies.

Neither protocol publishes a complete fee schedule. Gearbox borrowers pay interest on debt, and lenders earn yield from that interest, but exact rates, protocol fees and liquidation penalties are not stated here. Gearbox cites up to 14% APY for its Long-Term Savings product; that is a product claim, not a guaranteed return. Borrowers should check the current rate and market-specific terms in the app and documentation. Network gas also applies on the chosen chain.

Project 0 displays live APY and liquidity by asset in its Markets page, but protocol fees, liquidation penalties and Solana network fees are not publicly stated. Its displayed APY is not a complete measure of borrowing cost.

For either protocol, compare the current market rate and liquidation conditions before supplying collateral or taking debt. A missing published fee schedule makes it especially important to check the live market terms rather than assume costs are similar.

Both protocols expose users to smart-contract and liquidation risk. Gearbox's leverage can magnify losses and liquidate collateral; its use of LP tokens, vault shares and other composable assets adds further dependencies. It also supports tokenised-asset markets, where issuer and legal-enforcement risks may include freezes or compliance actions.

Gearbox lists two audits, while the project claims more than 30 audits, a live bug bounty and over $3 million spent on security. Treat the claims separately: the listed audit count is not the same as the project's broader claim. Project 0 has no audits listed, and the contents of its linked Audits page are not public. Its short history, cross-venue borrowing model and lack of public detail on custody, admin keys and insurance are reasons for additional caution.

Neither TVL nor audit claims eliminate risk. Review the specific market and collateral, and only deposit assets you can afford to lose.

Choose Gearbox if you are an experienced DeFi user looking for lending, isolated credit accounts or leverage across several networks. Its longer operating history, broad chain support and explicit account controls make it the more versatile option. That flexibility comes with meaningful risks: leverage can liquidate collateral, and exact rates and penalties are not published as a fixed schedule. Its tokenised-asset and prime-brokerage offerings may also be limited to approved participants.

Choose Project 0 if you use Solana and specifically want to borrow against positions spread across multiple venues through a unified borrowing model. It has higher TVL in this comparison and lists several major collateral assets, but its track record is short and audit coverage cannot be confirmed.

For users who prioritize a longer history and broader deployment, Gearbox is the stronger fit. For the specific Solana portfolio-borrowing use case, Project 0 is more directly aligned, but calls for greater caution.