diff --git a/tfhe/src/high_level_api/integers/signed/base.rs b/tfhe/src/high_level_api/integers/signed/base.rs
index 4d735898d7..89978ebb3a 100644
--- a/tfhe/src/high_level_api/integers/signed/base.rs
+++ b/tfhe/src/high_level_api/integers/signed/base.rs
@@ -260,9 +260,17 @@ where
                 crate::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support leading_zeros yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .leading_zeros(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                crate::FheUint32::new(result)
+            }),
         })
     }
 
@@ -296,9 +304,17 @@ where
                 crate::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support leading_ones yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .leading_ones(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                crate::FheUint32::new(result)
+            }),
         })
     }
 
@@ -332,9 +348,17 @@ where
                 crate::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support trailing_zeros yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .trailing_zeros(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                crate::FheUint32::new(result)
+            }),
         })
     }
 
@@ -368,9 +392,17 @@ where
                 crate::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support trailing_ones yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .trailing_ones(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                crate::FheUint32::new(result)
+            }),
         })
     }
 
@@ -406,9 +438,15 @@ where
                 crate::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support ilog2 yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key.key.ilog2(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                crate::FheUint32::new(result)
+            }),
         })
     }
 
@@ -448,9 +486,17 @@ where
                 (crate::FheUint32::new(result), FheBool::new(is_ok))
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support checked_ilog2 yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let (result, is_ok) = cuda_key
+                    .key
+                    .checked_ilog2(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    crate::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                (crate::FheUint32::new(result), FheBool::new(is_ok))
+            }),
         })
     }
 
diff --git a/tfhe/src/high_level_api/integers/unsigned/base.rs b/tfhe/src/high_level_api/integers/unsigned/base.rs
index 69bc5a1b6f..1d5367a21d 100644
--- a/tfhe/src/high_level_api/integers/unsigned/base.rs
+++ b/tfhe/src/high_level_api/integers/unsigned/base.rs
@@ -362,9 +362,17 @@ where
                 super::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support leading_zeros yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .leading_zeros(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                super::FheUint32::new(result)
+            }),
         })
     }
 
@@ -398,9 +406,17 @@ where
                 super::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support leading_ones yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .leading_ones(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                super::FheUint32::new(result)
+            }),
         })
     }
 
@@ -434,9 +450,17 @@ where
                 super::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support trailing_zeros yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .trailing_zeros(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                super::FheUint32::new(result)
+            }),
         })
     }
 
@@ -470,9 +494,17 @@ where
                 super::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support trailing_ones yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key
+                    .key
+                    .trailing_ones(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                super::FheUint32::new(result)
+            }),
         })
     }
 
@@ -508,9 +540,15 @@ where
                 super::FheUint32::new(result)
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support ilog2 yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let result = cuda_key.key.ilog2(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                super::FheUint32::new(result)
+            }),
         })
     }
 
@@ -550,9 +588,17 @@ where
                 (super::FheUint32::new(result), FheBool::new(is_ok))
             }
             #[cfg(feature = "gpu")]
-            InternalServerKey::Cuda(_) => {
-                panic!("Cuda devices do not support checked_ilog2 yet");
-            }
+            InternalServerKey::Cuda(cuda_key) => with_thread_local_cuda_streams(|streams| {
+                let (result, is_ok) = cuda_key
+                    .key
+                    .checked_ilog2(&*self.ciphertext.on_gpu(), streams);
+                let result = cuda_key.key.cast_to_unsigned(
+                    result,
+                    super::FheUint32Id::num_blocks(cuda_key.key.message_modulus),
+                    streams,
+                );
+                (super::FheUint32::new(result), FheBool::new(is_ok))
+            }),
         })
     }
 
diff --git a/tfhe/src/high_level_api/integers/unsigned/tests/gpu.rs b/tfhe/src/high_level_api/integers/unsigned/tests/gpu.rs
index 536f6836a3..9c927051ab 100644
--- a/tfhe/src/high_level_api/integers/unsigned/tests/gpu.rs
+++ b/tfhe/src/high_level_api/integers/unsigned/tests/gpu.rs
@@ -121,3 +121,27 @@ fn test_is_even_is_odd_gpu_multibit() {
     let client_key = setup_gpu(Some(PARAM_MULTI_BIT_MESSAGE_2_CARRY_2_GROUP_3_KS_PBS));
     super::test_case_is_even_is_odd(&client_key);
 }
+
+#[test]
+fn test_leading_trailing_zeros_ones_gpu() {
+    let client_key = setup_default_gpu();
+    super::test_case_leading_trailing_zeros_ones(&client_key);
+}
+
+#[test]
+fn test_leading_trailing_zeros_ones_gpu_multibit() {
+    let client_key = setup_gpu(Some(PARAM_MULTI_BIT_MESSAGE_2_CARRY_2_GROUP_3_KS_PBS));
+    super::test_case_leading_trailing_zeros_ones(&client_key);
+}
+
+#[test]
+fn test_ilog2_gpu() {
+    let client_key = setup_default_gpu();
+    super::test_case_ilog2(&client_key);
+}
+
+#[test]
+fn test_ilog2_multibit() {
+    let client_key = setup_gpu(Some(PARAM_MULTI_BIT_MESSAGE_2_CARRY_2_GROUP_3_KS_PBS));
+    super::test_case_ilog2(&client_key);
+}