diff --git a/candle-core/src/metal_backend.rs b/candle-core/src/metal_backend.rs
index 76577992..7a22595e 100644
--- a/candle-core/src/metal_backend.rs
+++ b/candle-core/src/metal_backend.rs
@@ -537,6 +537,11 @@ impl BackendStorage for MetalStorage {
             (ReduceOp::Max, DType::I64) => ("fast_max_i64_strided", true, false),
             (ReduceOp::ArgMin, DType::I64) => ("fast_argmin_i64_strided", true, true),
             (ReduceOp::ArgMax, DType::I64) => ("fast_argmax_i64_strided", true, true),
+            (ReduceOp::Sum, DType::U8) => ("fast_sum_u8_strided", false, false),
+            (ReduceOp::Min, DType::U8) => ("fast_min_u8_strided", true, false),
+            (ReduceOp::Max, DType::U8) => ("fast_max_u8_strided", true, false),
+            (ReduceOp::ArgMin, DType::U8) => ("fast_argmin_u8_strided", true, true),
+            (ReduceOp::ArgMax, DType::U8) => ("fast_argmax_u8_strided", true, true),
             (k, dtype) => crate::bail!("Metal reduce op {k:?} {dtype:?} not implemented"),
         };
         if check_empty && layout.shape().elem_count() == 0 {
@@ -779,6 +784,8 @@ impl BackendStorage for MetalStorage {
             (DType::U8, DType::F32) => "where_u8_f32",
             (DType::U8, DType::F16) => "where_u8_f16",
             (DType::U8, DType::I64) => "where_u8_i64",
+            (DType::U8, DType::U32) => "where_u8_u32",
+            (DType::U8, DType::U8) => "where_u8_u8",
             (left, right) => crate::bail!("Metal where_cond {left:?} {right:?} not implemented"),
         };
         candle_metal_kernels::call_where_cond_strided(
@@ -1323,6 +1330,26 @@ impl MetalStorage {
                 ("lt", DType::I64) => (contiguous::lt::I64, DType::U8),
                 ("ge", DType::I64) => (contiguous::ge::I64, DType::U8),
                 ("gt", DType::I64) => (contiguous::gt::I64, DType::U8),
+                ("add", DType::U32) => (contiguous::add::U32, self.dtype),
+                ("sub", DType::U32) => (contiguous::sub::U32, self.dtype),
+                ("mul", DType::U32) => (contiguous::mul::U32, self.dtype),
+                ("div", DType::U32) => (contiguous::div::U32, self.dtype),
+                ("eq", DType::U32) => (contiguous::eq::U32, DType::U8),
+                ("ne", DType::U32) => (contiguous::ne::U32, DType::U8),
+                ("le", DType::U32) => (contiguous::le::U32, DType::U8),
+                ("lt", DType::U32) => (contiguous::lt::U32, DType::U8),
+                ("ge", DType::U32) => (contiguous::ge::U32, DType::U8),
+                ("gt", DType::U32) => (contiguous::gt::U32, DType::U8),
+                ("add", DType::U8) => (contiguous::add::U8, self.dtype),
+                ("sub", DType::U8) => (contiguous::sub::U8, self.dtype),
+                ("mul", DType::U8) => (contiguous::mul::U8, self.dtype),
+                ("div", DType::U8) => (contiguous::div::U8, self.dtype),
+                ("eq", DType::U8) => (contiguous::eq::U8, DType::U8),
+                ("ne", DType::U8) => (contiguous::ne::U8, DType::U8),
+                ("le", DType::U8) => (contiguous::le::U8, DType::U8),
+                ("lt", DType::U8) => (contiguous::lt::U8, DType::U8),
+                ("ge", DType::U8) => (contiguous::ge::U8, DType::U8),
+                ("gt", DType::U8) => (contiguous::gt::U8, DType::U8),
                 (name, dtype) => {
                     crate::bail!("Metal contiguous binary {name} {dtype:?} not implemented")
                 }
@@ -1380,6 +1407,30 @@ impl MetalStorage {
                 ("lt", DType::I64) => (strided::lt::I64, DType::U8),
                 ("ge", DType::I64) => (strided::ge::I64, DType::U8),
                 ("gt", DType::I64) => (strided::gt::I64, DType::U8),
+                ("badd", DType::U32) => (strided::add::U32, self.dtype),
+                ("bsub", DType::U32) => (strided::sub::U32, self.dtype),
+                ("bmul", DType::U32) => (strided::mul::U32, self.dtype),
+                ("bdiv", DType::U32) => (strided::div::U32, self.dtype),
+                ("bminimum", DType::U32) => (strided::min::U32, self.dtype),
+                ("bmaximum", DType::U32) => (strided::max::U32, self.dtype),
+                ("eq", DType::U32) => (strided::eq::U32, DType::U8),
+                ("ne", DType::U32) => (strided::ne::U32, DType::U8),
+                ("le", DType::U32) => (strided::le::U32, DType::U8),
+                ("lt", DType::U32) => (strided::lt::U32, DType::U8),
+                ("ge", DType::U32) => (strided::ge::U32, DType::U8),
+                ("gt", DType::U32) => (strided::gt::U32, DType::U8),
+                ("badd", DType::U8) => (strided::add::U8, self.dtype),
+                ("bsub", DType::U8) => (strided::sub::U8, self.dtype),
+                ("bmul", DType::U8) => (strided::mul::U8, self.dtype),
+                ("bdiv", DType::U8) => (strided::div::U8, self.dtype),
+                ("bminimum", DType::U8) => (strided::min::U8, self.dtype),
+                ("bmaximum", DType::U8) => (strided::max::U8, self.dtype),
+                ("eq", DType::U8) => (strided::eq::U8, DType::U8),
+                ("ne", DType::U8) => (strided::ne::U8, DType::U8),
+                ("le", DType::U8) => (strided::le::U8, DType::U8),
+                ("lt", DType::U8) => (strided::lt::U8, DType::U8),
+                ("ge", DType::U8) => (strided::ge::U8, DType::U8),
+                ("gt", DType::U8) => (strided::gt::U8, DType::U8),
                 (name, dtype) => {
                     crate::bail!("Metal strided binary {name} {dtype:?} not implemented")
                 }
diff --git a/candle-metal-kernels/src/binary.metal b/candle-metal-kernels/src/binary.metal
index 30c90ff1..cdc8fef8 100644
--- a/candle-metal-kernels/src/binary.metal
+++ b/candle-metal-kernels/src/binary.metal
@@ -56,7 +56,9 @@ kernel void FN_NAME_STRIDED( \
 
 #define BINARY_OP(FN, NAME) \
 BINARY(FN, float, float, NAME##_f32, NAME##_f32_strided); \
-BINARY(FN, half, half, NAME##_f16, NAME##_f16_strided);
+BINARY(FN, half, half, NAME##_f16, NAME##_f16_strided); \
+BINARY(FN, uint32_t, uint32_t, NAME##_u32, NAME##_u32_strided); \
+BINARY(FN, uint8_t, uint8_t, NAME##_u8, NAME##_u8_strided);
 
 #define INT64_BINARY_OP(NAME, FN) \
 BINARY(FN, int64_t, int64_t, NAME##_i64, NAME##_i64_strided);
@@ -66,7 +68,9 @@ BINARY(FN, bfloat, bfloat, NAME##_bf16, NAME##_bf16_strided);
 
 #define BINARY_OP_OUT(NAME, FN) \
 BINARY(FN, float, uint8_t, NAME##_f32, NAME##_f32_strided); \
-BINARY(FN, half, uint8_t, NAME##_f16, NAME##_f16_strided);
+BINARY(FN, half, uint8_t, NAME##_f16, NAME##_f16_strided); \
+BINARY(FN, uint32_t, uint8_t, NAME##_u32, NAME##_u32_strided); \
+BINARY(FN, uint8_t, uint8_t, NAME##_u8, NAME##_u8_strided);
 
 #define INT64_BINARY_OP_OUT(NAME, FN) \
 BINARY(FN, int64_t, int8_t, NAME##_i64, NAME##_i64_strided);
diff --git a/candle-metal-kernels/src/lib.rs b/candle-metal-kernels/src/lib.rs
index 7b0084d9..d080ef52 100644
--- a/candle-metal-kernels/src/lib.rs
+++ b/candle-metal-kernels/src/lib.rs
@@ -131,6 +131,8 @@ macro_rules! ops{
             pub const HALF: Kernel = Kernel(concat!(stringify!($name), "_f16"));
             pub const BFLOAT: Kernel = Kernel(concat!(stringify!($name), "_bf16"));
             pub const I64: Kernel = Kernel(concat!(stringify!($name), "_i64"));
+            pub const U32: Kernel = Kernel(concat!(stringify!($name), "_u32"));
+            pub const U8: Kernel = Kernel(concat!(stringify!($name), "_u8"));
         }
         )+
             pub mod copy {
@@ -153,6 +155,8 @@ macro_rules! ops{
             pub const HALF: Kernel = Kernel(concat!(stringify!($name), "_f16_strided"));
             pub const BFLOAT: Kernel = Kernel(concat!(stringify!($name), "_bf16_strided"));
             pub const I64: Kernel = Kernel(concat!(stringify!($name), "_i64_strided"));
+            pub const U32: Kernel = Kernel(concat!(stringify!($name), "_u32_strided"));
+            pub const U8: Kernel = Kernel(concat!(stringify!($name), "_u8_strided"));
         }
         )+
             pub mod copy {
diff --git a/candle-metal-kernels/src/reduce.metal b/candle-metal-kernels/src/reduce.metal
index 38252967..83a56f0a 100644
--- a/candle-metal-kernels/src/reduce.metal
+++ b/candle-metal-kernels/src/reduce.metal
@@ -263,21 +263,26 @@ kernel void NAME(
 REDUCE(x + y, fast_sum_f32_strided, float, 0)
 REDUCE(x + y, fast_sum_u32_strided, uint, 0)
 REDUCE(x + y, fast_sum_f16_strided, half, 0)
+REDUCE(x + y, fast_sum_u8_strided, uint8_t, 0)
 REDUCE(x * y, fast_mul_f32_strided, float, 1)
 REDUCE(x * y, fast_mul_u32_strided, uint, 1)
 REDUCE(x * y, fast_mul_f16_strided, half, 1)
 REDUCE(MAX(x, y), fast_max_f32_strided, float, -HUGE_VALF)
 REDUCE(MAX(x, y), fast_max_u32_strided, uint, 0)
 REDUCE(MAX(x, y), fast_max_f16_strided, half, -HUGE_VALH)
+REDUCE(MAX(x, y), fast_max_u8_strided, uint8_t, 0)
 REDUCE(MIN(x, y), fast_min_f32_strided, float, HUGE_VALF)
 REDUCE(MIN(x, y), fast_min_u32_strided, uint, 0xFFFFFFFF)
 REDUCE(MIN(x, y), fast_min_f16_strided, half, HUGE_VALH)
+REDUCE(MIN(x, y), fast_min_u8_strided, uint8_t, 0xFF)
 ARGMIN(fast_argmin_f32_strided, float, HUGE_VALF)
 ARGMIN(fast_argmin_f16_strided, half, HUGE_VALH)
 ARGMIN(fast_argmin_u32_strided, uint, 0xFFFFFFFF)
+ARGMIN(fast_argmin_u8_strided, uint8_t, 0xFF)
 ARGMAX(fast_argmax_f32_strided, float, -HUGE_VALF)
 ARGMAX(fast_argmax_f16_strided, half, -HUGE_VALH)
 ARGMAX(fast_argmax_u32_strided, uint, 0)
+ARGMAX(fast_argmax_u8_strided, uint8_t, 0)
 
 SOFTMAX(softmax_f32, float)
 SOFTMAX(softmax_f16, half)
diff --git a/candle-metal-kernels/src/ternary.metal b/candle-metal-kernels/src/ternary.metal
index dfa0dd12..40b4bcf4 100644
--- a/candle-metal-kernels/src/ternary.metal
+++ b/candle-metal-kernels/src/ternary.metal
@@ -55,8 +55,8 @@ kernel void FN_NAME(  \
 
 WHERE_OP(float, uint8_t, where_u8_f32)
 // WHERE_OP(double, uint8_t, where_u8_f64)
-// WHERE_OP(uint8_t, uint8_t, where_u8_u8)
-// WHERE_OP(uint32_t, uint8_t, where_u8_u32)
+WHERE_OP(uint8_t, uint8_t, where_u8_u8)
+WHERE_OP(uint32_t, uint8_t, where_u8_u32)
 
 #if __METAL_VERSION__ >= 220
 WHERE_OP(int64_t, uint8_t, where_u8_i64)