diff --git a/onnxscript/function_libs/torch_lib/ops/core.py b/onnxscript/function_libs/torch_lib/ops/core.py
index f41ff1c3e..1fc73a220 100644
--- a/onnxscript/function_libs/torch_lib/ops/core.py
+++ b/onnxscript/function_libs/torch_lib/ops/core.py
@@ -39,7 +39,6 @@
     RealType,
     TFloat,
     TFloatHighPrecision,
-    TFloatOrBFloat16,
     TInt,
     TReal,
     TRealOrUInt8,
@@ -3564,14 +3563,14 @@ def aten_flipud(self: TensorType) -> TensorType:
 
 
 @torch_op("aten::floor", traceable=True)
-def aten_floor(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_floor(self: TFloat) -> TFloat:
     """floor(Tensor self) -> Tensor"""
 
     return op.Floor(self)
 
 
 @torch_op("math::floor", traceable=True)
-def python_math_floor(self: TFloatOrBFloat16) -> TInt:
+def python_math_floor(self: TFloat) -> TInt:
     """floor(Tensor self) -> Tensor"""
     floor = op.Floor(self)
     return op.Cast(floor, to=INT64.dtype)
@@ -4533,7 +4532,7 @@ def aten_isfinite(self: TFloatHighPrecision) -> BOOL:
 
 
 @torch_op("aten::isinf")
-def aten_isinf(self: TFloatOrBFloat16) -> BOOL:
+def aten_isinf(self: TFloat) -> BOOL:
     """isinf(Tensor self) -> Tensor"""
 
     # Added Cast inside the function so it can support all real dtypes naturally
@@ -4542,14 +4541,14 @@ def aten_isinf(self: TFloatOrBFloat16) -> BOOL:
 
 
 @torch_op("aten::isnan")
-def aten_isnan(self: TFloatOrBFloat16) -> BOOL:
+def aten_isnan(self: TFloat) -> BOOL:
     """isnan(Tensor self) -> Tensor"""
 
     return op.IsNaN(self)
 
 
 @torch_op("aten::isneginf")
-def aten_isneginf(self: TFloatOrBFloat16) -> BOOL:
+def aten_isneginf(self: TFloat) -> BOOL:
     """isneginf(Tensor self) -> Tensor"""
 
     # Added Cast inside the function so it can support all real dtypes naturally
@@ -4558,7 +4557,7 @@ def aten_isneginf(self: TFloatOrBFloat16) -> BOOL:
 
 
 @torch_op("aten::isposinf")
-def aten_isposinf(self: TFloatOrBFloat16) -> BOOL:
+def aten_isposinf(self: TFloat) -> BOOL:
     """isposinf(Tensor self) -> Tensor"""
 
     # Added Cast inside the function so it can support all real dtypes naturally
@@ -4778,42 +4777,42 @@ def aten_linspace(
 
 
 @torch_op("aten::log", traceable=True)
-def aten_log(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_log(self: TFloat) -> TFloat:
     """log(Tensor self) -> Tensor"""
 
     return op.Log(self)
 
 
 @torch_op("aten::log10", traceable=True)
-def aten_log10(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_log10(self: TFloat) -> TFloat:
     """log10(Tensor self) -> Tensor"""
 
     return op.Div(op.Log(self), op.CastLike(op.Log(10.0), self))
 
 
 @torch_op("aten::log1p")
-def aten_log1p(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_log1p(self: TFloat) -> TFloat:
     """log1p(Tensor self) -> Tensor"""
 
     return op.Log(op.Add(self, 1.0))
 
 
 @torch_op("aten::log2", traceable=True)
-def aten_log2(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_log2(self: TFloat) -> TFloat:
     """log2(Tensor self) -> Tensor"""
 
     return op.Div(op.Log(self), op.CastLike(op.Log(2.0), self))
 
 
 @torch_op("aten::logaddexp", traceable=True)
-def aten_logaddexp(self: TFloatOrBFloat16, other: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_logaddexp(self: TFloat, other: TFloat) -> TFloat:
     """logaddexp(Tensor self, Tensor other) -> Tensor"""
 
     return op.Log(op.Add(op.Exp(self), op.Exp(other)))
 
 
 @torch_op("aten::logaddexp2", traceable=True)
-def aten_logaddexp2(self: TFloatOrBFloat16, other: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_logaddexp2(self: TFloat, other: TFloat) -> TFloat:
     """logaddexp2(Tensor self, Tensor other) -> Tensor"""
     two = op.CastLike(2.0, self)
     summation = op.Add(op.Pow(two, self), op.Pow(two, other))
@@ -4822,7 +4821,7 @@ def aten_logaddexp2(self: TFloatOrBFloat16, other: TFloatOrBFloat16) -> TFloatOr
 
 
 @torch_op("aten::logcumsumexp", traceable=True)
-def aten_logcumsumexp(self: TFloatOrBFloat16, dim: int) -> TFloatOrBFloat16:
+def aten_logcumsumexp(self: TFloat, dim: int) -> TFloat:
     """logcumsumexp(Tensor self, int dim) -> Tensor"""
 
     if IsScalar(self):
@@ -4908,12 +4907,12 @@ def aten_logical_xor(self: BOOL, other: BOOL) -> BOOL:
 
 
 @torch_op("aten::logit", private=True)
-def _aten_logit_onnx(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def _aten_logit_onnx(self: TFloat) -> TFloat:
     return op.Log(op.Div(self, op.Sub(1.0, self)))
 
 
 @torch_op("aten::logit", private=True)
-def _aten_logit_clamp_onnx(self: TFloatOrBFloat16, eps: float) -> TFloatOrBFloat16:
+def _aten_logit_clamp_onnx(self: TFloat, eps: float) -> TFloat:
     eps = op.CastLike(eps, self)
     one = op.CastLike(1.0, self)
     temporary_self = op.Where(self <= one - eps, self, one - eps)
@@ -4923,7 +4922,7 @@ def _aten_logit_clamp_onnx(self: TFloatOrBFloat16, eps: float) -> TFloatOrBFloat
 
 
 @torch_op("aten::logit", trace_only=True)
-def aten_logit(self: TFloatOrBFloat16, eps: Optional[float] = None) -> TFloatOrBFloat16:
+def aten_logit(self: TFloat, eps: Optional[float] = None) -> TFloat:
     """logit(Tensor self, float? eps=None) -> Tensor"""
     if eps is None:
         return _aten_logit_onnx(self)
@@ -6041,9 +6040,7 @@ def aten_native_channel_shuffle(self: TensorType, groups: int) -> TensorType:
 
 
 @torch_op("aten::native_dropout", trace_only=True)
-def aten_native_dropout(
-    input: TFloatOrBFloat16, p: float, train: bool = True
-) -> Tuple[TFloatOrBFloat16, BOOL]:
+def aten_native_dropout(input: TFloat, p: float, train: bool = True) -> Tuple[TFloat, BOOL]:
     """native_dropout(Tensor input, float p, bool? train) -> (Tensor, Tensor)"""
 
     result, mask = op.Dropout(input, p, train)
@@ -7055,7 +7052,7 @@ def aten_real(self: TensorType) -> TensorType:
 
 
 @torch_op("aten::reciprocal")
-def aten_reciprocal(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_reciprocal(self: TFloat) -> TFloat:
     """reciprocal(Tensor self) -> Tensor"""
 
     return op.Reciprocal(self)
@@ -7074,7 +7071,7 @@ def aten_refine_names(self: TensorType, names: Sequence[str]) -> TensorType:
 
 
 @torch_op(("aten::remainder.Tensor", "aten::remainder.Scalar"))
-def aten_remainder(self: TFloatOrBFloat16, other: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_remainder(self: TFloat, other: TFloat) -> TFloat:
     """remainder.Tensor(Tensor self, Tensor other) -> Tensor"""
 
     # TODO(justinchuby): Improve fp16 precision by following the logic in
@@ -7355,7 +7352,7 @@ def aten_rrelu(
 
 
 @torch_op("aten::rsqrt", traceable=True)
-def aten_rsqrt(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_rsqrt(self: TFloat) -> TFloat:
     """rsqrt(Tensor self) -> Tensor"""
 
     return op.Reciprocal(op.Sqrt(self))
@@ -7562,7 +7559,7 @@ def aten_sgn(self: TensorType) -> TensorType:
 
 
 @torch_op("aten::sigmoid", traceable=True)
-def aten_sigmoid(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_sigmoid(self: TFloat) -> TFloat:
     """sigmoid(Tensor self) -> Tensor"""
 
     return op.Sigmoid(self)
@@ -7724,7 +7721,7 @@ def aten_smm(self: TensorType, mat2: TensorType) -> TensorType:
 
 
 @torch_op(("aten::softmax.int", "aten::special_softmax"), trace_only=True)
-def aten_softmax(self: TFloatOrBFloat16, dim: int, dtype: int = -1) -> TFloatOrBFloat16:
+def aten_softmax(self: TFloat, dim: int, dtype: int = -1) -> TFloat:
     """softmax(Tensor self, int dim, ScalarType? dtype=None) -> Tensor"""
 
     self_is_scalar = IsScalar(self)
@@ -7741,7 +7738,7 @@ def aten_softmax(self: TFloatOrBFloat16, dim: int, dtype: int = -1) -> TFloatOrB
 
 
 @torch_op(("aten::softmax.int", "aten::special_softmax"), traceable=True)
-def aten_softmax_no_dtype(self: TFloatOrBFloat16, dim: int) -> TFloatOrBFloat16:
+def aten_softmax_no_dtype(self: TFloat, dim: int) -> TFloat:
     """softmax(Tensor self, int dim, ScalarType? dtype=None) -> Tensor"""
 
     self_is_scalar = IsScalar(self)
@@ -7812,7 +7809,7 @@ def aten_split_with_sizes_copy(
 
 
 @torch_op("aten::sqrt", traceable=True)
-def aten_sqrt(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_sqrt(self: TFloat) -> TFloat:
     """sqrt(Tensor self) -> Tensor"""
 
     return op.Sqrt(self)
@@ -8402,7 +8399,7 @@ def aten_triu_indices(row: int, col: int, offset: int = 0) -> TensorType:
 
 
 @torch_op("aten::trunc")
-def aten_trunc(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_trunc(self: TFloat) -> TFloat:
     """trunc(Tensor self) -> Tensor"""
 
     # Reference https://github.com/onnx/onnx/issues/4588#issuecomment-1463970126
diff --git a/onnxscript/function_libs/torch_lib/ops/nn.py b/onnxscript/function_libs/torch_lib/ops/nn.py
index 4687e260a..e963050f5 100644
--- a/onnxscript/function_libs/torch_lib/ops/nn.py
+++ b/onnxscript/function_libs/torch_lib/ops/nn.py
@@ -25,7 +25,6 @@
 from onnxscript.function_libs.torch_lib.tensor_typing import (
     IntType,
     TFloat,
-    TFloatOrBFloat16,
     TFloatOrUInt8,
     TInt,
     TReal,
@@ -364,13 +363,13 @@ def aten_conv_depthwise3d(
 
 @torch_op("aten::cross_entropy_loss", traceable=True)
 def aten_cross_entropy_loss(
-    self: TFloatOrBFloat16,
+    self: TFloat,
     target: IntType,
-    weight: Optional[TFloatOrBFloat16] = None,
+    weight: Optional[TFloat] = None,
     reduction: int = 1,  # default is 'mean'
     ignore_index: int = -100,
     label_smoothing: float = 0.0,  # this was ignored due to ONNX not support
-) -> TFloatOrBFloat16:
+) -> TFloat:
     """cross_entropy_loss(Tensor self, Tensor target, Tensor? weight=None, int reduction=Mean, SymInt ignore_index=-100, float label_smoothing=0.0) -> Tensor"""
 
     if reduction == 0:  # "none"
@@ -812,7 +811,7 @@ def aten_l1_loss(self: TensorType, target: TensorType, reduction: int = 1) -> Te
 
 
 @torch_op("aten::leaky_relu")
-def aten_leaky_relu(self: TFloatOrBFloat16, negative_slope: float = 0.01) -> TFloatOrBFloat16:
+def aten_leaky_relu(self: TFloat, negative_slope: float = 0.01) -> TFloat:
     """leaky_relu(Tensor self, Scalar negative_slope=0.01) -> Tensor"""
 
     return op.LeakyRelu(self, alpha=negative_slope)
@@ -850,7 +849,7 @@ def aten_linear_bias(input: TFloat, weight: TFloat, bias: TFloat) -> TFloat:
 
 
 @torch_op("aten::log_sigmoid")
-def aten_log_sigmoid(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_log_sigmoid(self: TFloat) -> TFloat:
     """log_sigmoid(Tensor self) -> Tensor"""
 
     return op.Log(op.Sigmoid(self))
diff --git a/onnxscript/function_libs/torch_lib/ops/special.py b/onnxscript/function_libs/torch_lib/ops/special.py
index 6dd9edcd3..c791937b1 100644
--- a/onnxscript/function_libs/torch_lib/ops/special.py
+++ b/onnxscript/function_libs/torch_lib/ops/special.py
@@ -17,7 +17,7 @@
 
 from onnxscript.function_libs.torch_lib.ops import common as common_ops
 from onnxscript.function_libs.torch_lib.registration import torch_op
-from onnxscript.function_libs.torch_lib.tensor_typing import TFloat, TFloatOrBFloat16
+from onnxscript.function_libs.torch_lib.tensor_typing import TFloat
 from onnxscript.onnx_opset import opset18 as op
 from onnxscript.onnx_types import TensorType
 
@@ -92,21 +92,21 @@ def aten_special_entr(self: TensorType) -> TensorType:
 
 
 @torch_op(("aten::erf", "aten::special_erf"))
-def aten_special_erf(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_special_erf(self: TFloat) -> TFloat:
     """erf(Tensor self) -> Tensor"""
 
     return op.Erf(self)
 
 
 @torch_op(("aten::erfc", "aten::special_erfc"))
-def aten_special_erfc(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_special_erfc(self: TFloat) -> TFloat:
     """erfc(Tensor self) -> Tensor"""
 
     return op.Sub(1, op.Erf(self))
 
 
 @torch_op("aten::special_erfcx")
-def aten_special_erfcx(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_special_erfcx(self: TFloat) -> TFloat:
     """special_erfcx(Tensor self) -> Tensor"""
 
     return op.Mul(op.Exp(op.Pow(self, 2)), op.Sub(1, op.Erf(self)))
@@ -131,7 +131,7 @@ def aten_special_expit(self: TensorType) -> TensorType:
 
 
 @torch_op(("aten::expm1", "aten::special_expm1"))
-def aten_special_expm1(self: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_special_expm1(self: TFloat) -> TFloat:
     """special_expm1(Tensor self) -> Tensor"""
 
     return op.Sub(op.Exp(self), 1)
@@ -216,9 +216,7 @@ def aten_special_log_ndtr(self: TensorType) -> TensorType:
 
 
 @torch_op(("aten::log_softmax.int", "aten::special_log_softmax"), trace_only=True)
-def aten_special_log_softmax(
-    self: TFloatOrBFloat16, dim: int, dtype: int = -1
-) -> TFloatOrBFloat16:
+def aten_special_log_softmax(self: TFloat, dim: int, dtype: int = -1) -> TFloat:
     """special_log_softmax(Tensor self, int dim, *, ScalarType? dtype=None) -> Tensor"""
 
     self_is_scalar = IsScalar(self)
@@ -366,7 +364,7 @@ def aten_special_xlog1py(self: TensorType, other: TensorType) -> TensorType:
 
 
 @torch_op(("aten::xlogy.Tensor", "aten::xlogy.Scalar_Self", "aten::xlogy.Scalar_Other"))
-def aten_special_xlogy(self: TFloatOrBFloat16, other: TFloatOrBFloat16) -> TFloatOrBFloat16:
+def aten_special_xlogy(self: TFloat, other: TFloat) -> TFloat:
     """special_xlogy(Tensor self, Tensor other) -> Tensor"""
 
     # https://pytorch.org/docs/stable/special.html#torch.special.xlogy
diff --git a/onnxscript/function_libs/torch_lib/tensor_typing.py b/onnxscript/function_libs/torch_lib/tensor_typing.py
index 7b5287f41..1f27c0cff 100644
--- a/onnxscript/function_libs/torch_lib/tensor_typing.py
+++ b/onnxscript/function_libs/torch_lib/tensor_typing.py
@@ -42,7 +42,7 @@
     INT64,
     UINT8,
 ]
-_FloatType = Union[FLOAT16, FLOAT, DOUBLE]
+_FloatType = Union[FLOAT16, FLOAT, DOUBLE, BFLOAT16]
 IntType = Union[INT8, INT16, INT32, INT64]
 RealType = Union[
     BFLOAT16,
@@ -61,7 +61,6 @@
 TTensor2 = TypeVar("TTensor2", bound=_TensorType)
 TTensorOrString = TypeVar("TTensorOrString", bound=Union[_TensorType, STRING])
 TFloat = TypeVar("TFloat", bound=_FloatType)
-TFloatOrBFloat16 = TypeVar("TFloatOrBFloat16", bound=Union[FLOAT16, FLOAT, DOUBLE, BFLOAT16])
 TFloatOrUInt8 = TypeVar("TFloatOrUInt8", bound=Union[FLOAT, FLOAT16, DOUBLE, INT8, UINT8])
 TInt = TypeVar("TInt", bound=IntType)
 TReal = TypeVar("TReal", bound=RealType)
diff --git a/requirements/ci/requirements-onnx-weekly.txt b/requirements/ci/requirements-onnx-weekly.txt
index 2ebee9809..ea926d355 100644
--- a/requirements/ci/requirements-onnx-weekly.txt
+++ b/requirements/ci/requirements-onnx-weekly.txt
@@ -1 +1 @@
-onnx-weekly==1.17.0.dev20240715
+onnx-weekly==1.18.0.dev20240930