diff --git a/cmake/python.cmake b/cmake/python.cmake
index e38c0d61ff..6cf4e5f386 100644
--- a/cmake/python.cmake
+++ b/cmake/python.cmake
@@ -393,7 +393,7 @@ if(BUILD_MATH_OPT)
 endif()
 file(COPY
   ortools/sat/python/cp_model.py
-  ortools/sat/python/cp_model_helper.py
+  ortools/sat/python/cp_model_numbers.py
   DESTINATION ${PYTHON_PROJECT_DIR}/sat/python)
 file(COPY
   ortools/sat/colab/flags.py
@@ -649,7 +649,7 @@ add_custom_command(
   COMMAND ${CMAKE_COMMAND} -E copy
    $<TARGET_FILE:routing_pybind11> ${PYTHON_PROJECT}/routing/python
   COMMAND ${CMAKE_COMMAND} -E copy
-   $<TARGET_FILE:swig_helper_pybind11> ${PYTHON_PROJECT}/sat/python
+   $<TARGET_FILE:cp_model_helper_pybind11> ${PYTHON_PROJECT}/sat/python
   COMMAND ${CMAKE_COMMAND} -E copy
    $<TARGET_FILE:rcpsp_pybind11> ${PYTHON_PROJECT}/scheduling/python
   COMMAND ${CMAKE_COMMAND} -E copy
@@ -672,7 +672,7 @@ add_custom_command(
     model_builder_helper_pybind11
     math_opt_pybind11
     $<TARGET_NAME_IF_EXISTS:pdlp_pybind11>
-    swig_helper_pybind11
+    cp_model_helper_pybind11
     rcpsp_pybind11
     sorted_interval_list_pybind11
   WORKING_DIRECTORY python
@@ -712,7 +712,7 @@ add_custom_command(
   COMMAND ${stubgen_EXECUTABLE} -p ortools.pdlp.python.pdlp --output .
   COMMAND ${stubgen_EXECUTABLE} -p ortools.routing.pywraprouting --output .
   COMMAND ${stubgen_EXECUTABLE} -p ortools.routing.python.model --output .
-  COMMAND ${stubgen_EXECUTABLE} -p ortools.sat.python.swig_helper --output .
+  COMMAND ${stubgen_EXECUTABLE} -p ortools.sat.python.cp_model_helper --output .
   COMMAND ${stubgen_EXECUTABLE} -p ortools.scheduling.python.rcpsp --output .
   COMMAND ${stubgen_EXECUTABLE} -p ortools.util.python.sorted_interval_list --output .
   COMMAND ${CMAKE_COMMAND} -E touch ${PROJECT_BINARY_DIR}/python/stub_timestamp
diff --git a/cmake/samples/python/sample.py b/cmake/samples/python/sample.py
index 9dc293fb8c..1cd6775868 100644
--- a/cmake/samples/python/sample.py
+++ b/cmake/samples/python/sample.py
@@ -21,7 +21,7 @@ from ortools.constraint_solver import pywrapcp
 # from ortools.graph.python import min_cost_flow
 from ortools.linear_solver import pywraplp
 # from ortools.linear_solver import linear_solver_pb2
-# from ortools.sat.python import swig_helper
+# from ortools.sat.python import cp_model_helper
 # from ortools.sat.python import cp_model
 # from ortools.scheduling import rcpsp
 # from ortools.util.python import sorted_interval_list
diff --git a/ortools/python/BUILD.bazel b/ortools/python/BUILD.bazel
index 67633d4cac..4c30f9de22 100644
--- a/ortools/python/BUILD.bazel
+++ b/ortools/python/BUILD.bazel
@@ -23,7 +23,7 @@ py_binary(
         "//ortools/graph/python:linear_sum_assignment.so",
         "//ortools/graph/python:max_flow.so",
         "//ortools/graph/python:min_cost_flow.so",
-        "//ortools/sat/python:swig_helper.so",
+        "//ortools/sat/python:cp_model_helper.so",
     ],
     tags = ["manual"],
     deps = [
@@ -32,7 +32,7 @@ py_binary(
         "//ortools/sat/colab:flags",
         "//ortools/sat/colab:visualization",
         "//ortools/sat/python:cp_model",
-        "//ortools/sat/python:cp_model_helper",
+        "//ortools/sat/python:cp_model_numbers",
         requirement("notebook"),
         requirement("svgwrite"),
         requirement("plotly"),
diff --git a/ortools/python/setup.py.in b/ortools/python/setup.py.in
index 38be021e97..697011f6da 100644
--- a/ortools/python/setup.py.in
+++ b/ortools/python/setup.py.in
@@ -118,7 +118,7 @@ setup(
         '@PYTHON_PROJECT@.sat':['*.pyi'],
         '@PYTHON_PROJECT@.sat.colab':['*.pyi', 'py.typed'],
         '@PYTHON_PROJECT@.sat.python':[
-            '$<TARGET_FILE_NAME:swig_helper_pybind11>',
+            '$<TARGET_FILE_NAME:cp_model_helper_pybind11>',
             '*.pyi',
             'py.typed'
         ],
diff --git a/ortools/sat/python/CMakeLists.txt b/ortools/sat/python/CMakeLists.txt
index cf3e7d8d6a..d5e1cf1f60 100644
--- a/ortools/sat/python/CMakeLists.txt
+++ b/ortools/sat/python/CMakeLists.txt
@@ -11,26 +11,26 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-pybind11_add_module(swig_helper_pybind11 MODULE swig_helper.cc)
-set_target_properties(swig_helper_pybind11 PROPERTIES
-  LIBRARY_OUTPUT_NAME "swig_helper")
+pybind11_add_module(cp_model_helper_pybind11 MODULE cp_model_helper.cc)
+set_target_properties(cp_model_helper_pybind11 PROPERTIES
+  LIBRARY_OUTPUT_NAME "cp_model_helper")
 
 # note: macOS is APPLE and also UNIX !
 if(APPLE)
-  set_target_properties(swig_helper_pybind11 PROPERTIES
+  set_target_properties(cp_model_helper_pybind11 PROPERTIES
     SUFFIX ".so"
     INSTALL_RPATH "@loader_path;@loader_path/../../../${PYTHON_PROJECT}/.libs")
 elseif(UNIX)
-  set_target_properties(swig_helper_pybind11 PROPERTIES
+  set_target_properties(cp_model_helper_pybind11 PROPERTIES
     INSTALL_RPATH "$ORIGIN:$ORIGIN/../../../${PYTHON_PROJECT}/.libs")
 endif()
-target_link_libraries(swig_helper_pybind11 PRIVATE
+target_link_libraries(cp_model_helper_pybind11 PRIVATE
   ${PROJECT_NAMESPACE}::ortools
   pybind11_native_proto_caster
   protobuf::libprotobuf)
 
-target_include_directories(swig_helper_pybind11 PRIVATE ${protobuf_SOURCE_DIR})
-add_library(${PROJECT_NAMESPACE}::swig_helper_pybind11 ALIAS swig_helper_pybind11)
+target_include_directories(cp_model_helper_pybind11 PRIVATE ${protobuf_SOURCE_DIR})
+add_library(${PROJECT_NAMESPACE}::cp_model_helper_pybind11 ALIAS cp_model_helper_pybind11)
 
 if(BUILD_TESTING)
   file(GLOB PYTHON_SRCS "*_test.py")
diff --git a/tools/docker/python/build-manylinux.sh b/tools/docker/python/build-manylinux.sh
index 329c1a07c6..f4bccf3ea6 100755
--- a/tools/docker/python/build-manylinux.sh
+++ b/tools/docker/python/build-manylinux.sh
@@ -126,7 +126,7 @@ function check_wheel() {
     "ortools/linear_solver/python/model_builder_helper.pyi"
     "ortools/linear_solver/pywraplp.pyi"
     "ortools/pdlp/python/pdlp.pyi"
-    "ortools/sat/python/swig_helper.pyi"
+    "ortools/sat/python/cp_model_helper.pyi"
     "ortools/scheduling/python/rcpsp.pyi"
     "ortools/util/python/sorted_interval_list.pyi"
   )
diff --git a/tools/release/build_delivery_macos.sh b/tools/release/build_delivery_macos.sh
index f5bc67ada2..ebd257495f 100755
--- a/tools/release/build_delivery_macos.sh
+++ b/tools/release/build_delivery_macos.sh
@@ -252,7 +252,7 @@ function build_python() {
     "ortools/linear_solver/python/model_builder_helper.pyi"
     "ortools/linear_solver/pywraplp.pyi"
     "ortools/pdlp/python/pdlp.pyi"
-    "ortools/sat/python/swig_helper.pyi"
+    "ortools/sat/python/cp_model_helper.pyi"
     "ortools/scheduling/python/rcpsp.pyi"
     "ortools/util/python/sorted_interval_list.pyi"
   )
diff --git a/tools/release/build_delivery_win.cmd b/tools/release/build_delivery_win.cmd
index 0a27167745..a5638aaf6c 100644
--- a/tools/release/build_delivery_win.cmd
+++ b/tools/release/build_delivery_win.cmd
@@ -308,7 +308,7 @@ FOR %%v IN (8 9 10 11 12 13) DO (
       ortools\linear_solver\python\model_builder_helper.pyi
       ortools\linear_solver\pywraplp.pyi
       ortools\pdlp\python\pdlp.pyi
-      ortools\sat\python\swig_helper.pyi
+      ortools\sat\python\cp_model_helper.pyi
       ortools\scheduling\python\rcpsp.pyi
       ortools\util\python\sorted_interval_list.pyi
     ) DO (