diff --git a/api_gen.py b/api_gen.py
index c3f1b9c80b7..28fac8fa4f1 100644
--- a/api_gen.py
+++ b/api_gen.py
@@ -47,8 +47,6 @@ def create_legacy_directory(package_dir):
         )
     with open(os.path.join(api_dir, "__init__.py"), "w") as f:
         f.write(init_file)
-    with open(os.path.join(package_dir, "__init__.py"), "w") as f:
-        f.write(init_file)
     # Remove the import of `_tf_keras` in `keras/_tf_keras/keras/__init__.py`
     init_file = init_file.replace("from keras.api import _tf_keras\n", "\n")
     with open(os.path.join(tf_keras_dirpath, "__init__.py"), "w") as f:
@@ -128,6 +126,40 @@ def export_version_string(api_init_fname):
         f.write(contents)
 
 
+def update_package_init(init_fname):
+    contents = """
+# Import everything from /api/ into keras.
+from keras.api import *  # noqa: F403
+from keras.api import __version__  # Import * ignores names start with "_".
+
+import os
+
+# Add everything in /api/ to the module search path.
+__path__.append(os.path.join(os.path.dirname(__file__), "api"))  # noqa: F405
+
+# Don't pollute namespace.
+del os
+
+# Never autocomplete `.src` or `.api` on an imported keras object.
+def __dir__():
+    keys = dict.fromkeys((globals().keys()))
+    keys.pop("src")
+    keys.pop("api")
+    return list(keys)
+
+
+# Don't import `.src` or `.api` during `from keras import *`.
+__all__ = [
+    name
+    for name in globals().keys()
+    if not (name.startswith("_") or name in ("src", "api"))
+]"""
+    with open(init_fname) as f:
+        init_contents = f.read()
+    with open(init_fname, "w") as f:
+        f.write(init_contents.replace("\nfrom keras import api", contents))
+
+
 def build():
     # Backup the `keras/__init__.py` and restore it on error in api gen.
     root_path = os.path.dirname(os.path.abspath(__file__))
@@ -149,6 +181,8 @@ def build():
         namex.generate_api_files(
             "keras", code_directory="src", target_directory="api"
         )
+        # Creates `keras/__init__.py` importing from `keras/api`
+        update_package_init(build_init_fname)
         # Add __version__ to keras package
         export_version_string(build_api_init_fname)
         # Creates `_tf_keras` with full keras API
diff --git a/keras/__init__.py b/keras/__init__.py
index 1750a42e869..6276b51e1f8 100644
--- a/keras/__init__.py
+++ b/keras/__init__.py
@@ -4,52 +4,30 @@
 since your modifications would be overwritten.
 """
 
-from keras.api import _tf_keras
-from keras.api import activations
-from keras.api import applications
-from keras.api import backend
-from keras.api import callbacks
-from keras.api import config
-from keras.api import constraints
-from keras.api import datasets
-from keras.api import distribution
-from keras.api import dtype_policies
-from keras.api import export
-from keras.api import initializers
-from keras.api import layers
-from keras.api import legacy
-from keras.api import losses
-from keras.api import metrics
-from keras.api import mixed_precision
-from keras.api import models
-from keras.api import ops
-from keras.api import optimizers
-from keras.api import preprocessing
-from keras.api import quantizers
-from keras.api import random
-from keras.api import regularizers
-from keras.api import saving
-from keras.api import tree
-from keras.api import utils
-from keras.src.backend.common.keras_tensor import KerasTensor
-from keras.src.backend.common.stateless_scope import StatelessScope
-from keras.src.backend.exports import Variable
-from keras.src.backend.exports import device
-from keras.src.backend.exports import name_scope
-from keras.src.dtype_policies.dtype_policy import DTypePolicy
-from keras.src.dtype_policies.dtype_policy import FloatDTypePolicy
-from keras.src.initializers.initializer import Initializer
-from keras.src.layers.core.input_layer import Input
-from keras.src.layers.input_spec import InputSpec
-from keras.src.layers.layer import Layer
-from keras.src.losses.loss import Loss
-from keras.src.metrics.metric import Metric
-from keras.src.models.model import Model
-from keras.src.models.sequential import Sequential
-from keras.src.ops.function import Function
-from keras.src.ops.operation import Operation
-from keras.src.optimizers.optimizer import Optimizer
-from keras.src.quantizers.quantizers import Quantizer
-from keras.src.regularizers.regularizers import Regularizer
-from keras.src.version import __version__
-from keras.src.version import version
+import os
+
+# Import everything from /api/ into keras.
+from keras.api import *  # noqa: F403
+from keras.api import __version__  # Import * ignores names start with "_".
+
+# Add everything in /api/ to the module search path.
+__path__.append(os.path.join(os.path.dirname(__file__), "api"))  # noqa: F405
+
+# Don't pollute namespace.
+del os
+
+
+# Never autocomplete `.src` or `.api` on an imported keras object.
+def __dir__():
+    keys = dict.fromkeys((globals().keys()))
+    keys.pop("src")
+    keys.pop("api")
+    return list(keys)
+
+
+# Don't import `.src` or `.api` during `from keras import *`.
+__all__ = [
+    name
+    for name in globals().keys()
+    if not (name.startswith("_") or name in ("src", "api"))
+]