diff --git a/litellm/__init__.py b/litellm/__init__.py
index 1602f8ffdc..57ba28b998 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -286,6 +286,7 @@ from .utils import (
     Logging,
     acreate,
     get_model_list,
+    completion_with_split_tests
 )
 from .main import *  # type: ignore
 from .integrations import *
diff --git a/litellm/__pycache__/__init__.cpython-311.pyc b/litellm/__pycache__/__init__.cpython-311.pyc
index 61bd76f596..8740f2ca7b 100644
Binary files a/litellm/__pycache__/__init__.cpython-311.pyc and b/litellm/__pycache__/__init__.cpython-311.pyc differ
diff --git a/litellm/__pycache__/main.cpython-311.pyc b/litellm/__pycache__/main.cpython-311.pyc
index 0d73a670da..d9973c270e 100644
Binary files a/litellm/__pycache__/main.cpython-311.pyc and b/litellm/__pycache__/main.cpython-311.pyc differ
diff --git a/litellm/__pycache__/utils.cpython-311.pyc b/litellm/__pycache__/utils.cpython-311.pyc
index e6cb1a5594..27f57b6dae 100644
Binary files a/litellm/__pycache__/utils.cpython-311.pyc and b/litellm/__pycache__/utils.cpython-311.pyc differ
diff --git a/litellm/main.py b/litellm/main.py
index 1b9b7ca155..62a8900932 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -94,7 +94,7 @@ def completion(
     custom_api_base=None,
     litellm_call_id=None,
     litellm_logging_obj=None,
-    completion_call_id=None, # this is an optional param to tag individual completion calls 
+    id=None, # this is an optional param to tag individual completion calls 
     # model specific optional params
     # used by text-bison only
     top_k=40,
@@ -154,7 +154,7 @@ def completion(
             custom_api_base=custom_api_base,
             litellm_call_id=litellm_call_id,
             model_alias_map=litellm.model_alias_map,
-            completion_call_id=completion_call_id
+            completion_call_id=id
         )
         logging.update_environment_variables(optional_params=optional_params, litellm_params=litellm_params)
         if custom_llm_provider == "azure":
diff --git a/litellm/tests/test_split_test.py b/litellm/tests/test_split_test.py
new file mode 100644
index 0000000000..35ff007be3
--- /dev/null
+++ b/litellm/tests/test_split_test.py
@@ -0,0 +1,24 @@
+#### What this tests ####
+#    This tests the 'completion_with_split_tests' function to enable a/b testing between llm models
+
+import sys, os
+import traceback
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds the parent directory to the system path
+import litellm
+from litellm import completion_with_split_tests
+litellm.set_verbose = True
+split_per_model = {
+	"gpt-4": 0.7, 
+	"claude-instant-1.2": 0.3
+}
+
+messages = [{ "content": "Hello, how are you?","role": "user"}]
+
+# print(completion_with_split_tests(models=split_per_model, messages=messages))
+
+# test with client 
+
+print(completion_with_split_tests(models=split_per_model, messages=messages, use_client=True, id=1234))
\ No newline at end of file
diff --git a/litellm/utils.py b/litellm/utils.py
index def92ec093..3aaf00b9ec 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -1898,6 +1898,58 @@ async def stream_to_string(generator):
     return response
 
 
+########## experimental completion variants ############################
+
+def get_model_split_test(models, completion_call_id):
+    global last_fetched_at
+    try:
+        # make the api call
+        last_fetched_at = time.time()
+        print(f"last_fetched_at: {last_fetched_at}")
+        response = requests.post(
+            #http://api.litellm.ai
+            url="http://api.litellm.ai/get_model_split_test", # get the updated dict from table or update the table with the dict
+            headers={"content-type": "application/json"},
+            data=json.dumps({"completion_call_id": completion_call_id, "models": models}),
+        )
+        print_verbose(f"get_model_list response: {response.text}")
+        data = response.json()
+        # update model list
+        split_test_models = data["split_test_models"]
+        # update environment - if required
+        threading.Thread(target=get_all_keys, args=()).start()
+        return split_test_models
+    except:
+        print_verbose(
+            f"[Non-Blocking Error] get_all_keys error - {traceback.format_exc()}"
+        )
+
+
+def completion_with_split_tests(models={}, messages=[], use_client=False, **kwargs):
+    """
+    Example Usage: 
+
+    models =  {
+	    "gpt-4": 0.7, 
+	    "huggingface/wizard-coder": 0.3
+    }
+    messages = [{ "content": "Hello, how are you?","role": "user"}]
+    completion_with_split_tests(models=models, messages=messages)
+    """
+    import random
+    if use_client:
+        if "id" not in kwargs or kwargs["id"] is None:
+            raise ValueError("Please tag this completion call, if you'd like to update it's split test values through the UI. - eg. `completion_with_split_tests(.., id=1234)`.")
+        # get the most recent model split list from server 
+        models = get_model_split_test(models=models, completion_call_id=kwargs["id"])
+
+    try:
+        selected_llm = random.choices(list(models.keys()), weights=list(models.values()))[0]
+    except:
+        traceback.print_exc()
+        raise ValueError("""models does not follow the required format - {'model_name': 'split_percentage'}, e.g. {'gpt-4': 0.7, 'huggingface/wizard-coder': 0.3}""")
+    return litellm.completion(model=selected_llm, messages=messages, **kwargs)
+
 def completion_with_fallbacks(**kwargs):
     response = None
     rate_limited_models = set()
diff --git a/pyproject.toml b/pyproject.toml
index eb5c9be7b6..d226ddfeba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "litellm"
-version = "0.1.511"
+version = "0.1.512"
 description = "Library to easily interface with LLM API providers"
 authors = ["BerriAI"]
 license = "MIT License"