diff --git a/crates/uplc/src/machine/cost_model.rs b/crates/uplc/src/machine/cost_model.rs
index ec88b94c..37e5eed6 100644
--- a/crates/uplc/src/machine/cost_model.rs
+++ b/crates/uplc/src/machine/cost_model.rs
@@ -372,9 +372,9 @@ impl BuiltinCosts {
                     intercept: 0,
                     slope: 1,
                 }),
-                cpu: TwoArguments::AddedSizes(AddedSizes {
-                    intercept: 69522,
-                    slope: 11687,
+                cpu: TwoArguments::MultipliedSizes(MultipliedSizes {
+                    intercept: 90434,
+                    slope: 519,
                 }),
             },
             divide_integer: CostingFun {
@@ -384,10 +384,10 @@ impl BuiltinCosts {
                     minimum: 1,
                 }),
                 cpu: TwoArguments::ConstAboveDiagonal(ConstantOrTwoArguments {
-                    constant: 196500,
+                    constant: 85848,
                     model: Box::new(TwoArguments::MultipliedSizes(MultipliedSizes {
-                        intercept: 453240,
-                        slope: 220,
+                        intercept: 228465,
+                        slope: 122,
                     })),
                 }),
             },
@@ -398,10 +398,10 @@ impl BuiltinCosts {
                     minimum: 1,
                 }),
                 cpu: TwoArguments::ConstAboveDiagonal(ConstantOrTwoArguments {
-                    constant: 196500,
+                    constant: 85848,
                     model: Box::new(TwoArguments::MultipliedSizes(MultipliedSizes {
-                        intercept: 453240,
-                        slope: 220,
+                        intercept: 228465,
+                        slope: 122,
                     })),
                 }),
             },
@@ -412,10 +412,10 @@ impl BuiltinCosts {
                     minimum: 1,
                 }),
                 cpu: TwoArguments::ConstAboveDiagonal(ConstantOrTwoArguments {
-                    constant: 196500,
+                    constant: 85848,
                     model: Box::new(TwoArguments::MultipliedSizes(MultipliedSizes {
-                        intercept: 453240,
-                        slope: 220,
+                        intercept: 228465,
+                        slope: 122,
                     })),
                 }),
             },
@@ -426,10 +426,10 @@ impl BuiltinCosts {
                     minimum: 1,
                 }),
                 cpu: TwoArguments::ConstAboveDiagonal(ConstantOrTwoArguments {
-                    constant: 196500,
+                    constant: 85848,
                     model: Box::new(TwoArguments::MultipliedSizes(MultipliedSizes {
-                        intercept: 453240,
-                        slope: 220,
+                        intercept: 228465,
+                        slope: 122,
                     })),
                 }),
             },
@@ -557,9 +557,9 @@ impl BuiltinCosts {
             },
             verify_ed25519_signature: CostingFun {
                 mem: ThreeArguments::ConstantCost(10),
-                cpu: ThreeArguments::LinearInZ(LinearSize {
-                    intercept: 57996947,
-                    slope: 18975,
+                cpu: ThreeArguments::LinearInY(LinearSize {
+                    intercept: 53384111,
+                    slope: 14333,
                 }),
             },
             verify_ecdsa_secp256k1_signature: CostingFun {