solana-builtins-default-costs is used at run time in 30 crates. It is a direct run-time dependency in 4 crates. It's used only as a dev dependency in 15 crates.

Depender (with downloads and own rev deps) solana-builtins-default-costs version
28K 5 solana-cost-model =2.1.6
14K 5 solana-runtime-transaction =2.1.6
11K 16 solana-core =2.1.6
160 solana-compute-budget-instruction ^2.1.0