The choice between Lygos and Aave comes down to three factors: total cost, custody architecture, and who the platform is designed for. Lygos serves borrowers from $50,000 to $50,000,000 with a single transparent rate and non-custodial DLC security. Aave serves borrowers of any size with no minimum, using smart contract (wrapped btc via custodial bridge).
On a $250,000 loan, Aave costs $11,000 in the first year versus $25,000 at Lygos, a difference of $14,000. Aave charges no origination fee, so the only cost is interest.
The custody difference is material. Lygos uses non-custodial (dlc), which means your Bitcoin is locked on the Bitcoin blockchain in a smart contract where no party can access it. Aave uses smart contract (wrapped btc via custodial bridge). In a platform insolvency scenario, Lygos borrowers' collateral is protected by the Bitcoin protocol, while Aave borrowers may face creditor claims.
Lygos is the better fit for borrowers who prioritize non-custodial security, want a single transparent rate, and are borrowing $50,000 or more. Aave is the better fit for borrowers who need smaller loans or more flexible access.
Key details to be aware of: Aave: DeFi money market — rates are variable and utilization-driven: USDC borrow against WBTC/cbBTC has ranged ~3.5-5.