Cost efficiency in DeFi token development begins with proper planning and using proven frameworks or token standards like ERC-20 or BEP-20. Custom features like staking, yield farming, or vesting schedules can increase development expenses, so only add what’s necessary for your project’s goals. Leveraging open-source smart contracts and working with a development company that offers end-to-end solutions can save time and money. Also, test on testnets before deploying to mainnet to avoid expensive errors.