add mistral prompt templating

litellm/llms/prompt_templates/factory.py

@@ -22,6 +22,28 @@ def llama_2_chat_pt(messages):
     )
     return prompt
 
+def mistral_instruct_pt(messages): 
+    prompt = custom_prompt(
+        initial_prompt_value="<s>",
+        role_dict={
+            "system": {
+                "pre_message": "[INST]",
+                "post_message": "[/INST]"
+            }, 
+            "user": {
+                "pre_message": "[INST]", 
+                "post_message": "[/INST]"
+            },
+            "assistant": {
+                "pre_message": "[INST]",
+                "post_message": "[/INST]"
+            }
+        },
+        final_prompt_value="</s>",
+        messages=messages
+    )
+    return prompt
+
 # Falcon prompt template - from https://github.com/lm-sys/FastChat/blob/main/fastchat/conversation.py#L110
 def falcon_instruct_pt(messages):
     prompt = ""
@@ -116,4 +138,6 @@ def prompt_factory(model: str, messages: list):
         return phind_codellama_pt(messages=messages)
     elif "togethercomputer/llama-2" in model and ("instruct" in model or "chat" in model):
         return llama_2_chat_pt(messages=messages)
+    elif "mistralai/mistral" in model and "instruct" in model: 
+        return mistral_instruct_pt(messages=messages)
     return default_pt(messages=messages) # default that covers Bloom, T-5, any non-chat tuned model (e.g. base Llama2)

litellm/tests/test_completion.py

@@ -199,9 +199,9 @@ def test_get_hf_task_for_model():
 # def hf_test_completion_tgi():
 #     try:
 #         response = litellm.completion(
-#             model="huggingface/glaiveai/glaive-coder-7b",
+#             model="huggingface/mistralai/Mistral-7B-Instruct-v0.1",
 #             messages=[{ "content": "Hello, how are you?","role": "user"}],
-#             api_base="https://wjiegasee9bmqke2.us-east-1.aws.endpoints.huggingface.cloud",
+#             api_base="https://n9ox93a8sv5ihsow.us-east-1.aws.endpoints.huggingface.cloud",
 #         )
 #         # Add any assertions here to check the response
 #         print(response)
@@ -646,16 +646,7 @@ def test_completion_azure_deployment_id():
 #         pytest.fail(f"Error occurred: {e}")
 
 # test_completion_anthropic_litellm_proxy()
-# def test_hf_conversational_task():
-#     try:
-#         messages = [{ "content": "There's a llama in my garden 😱 What should I do?","role": "user"}]
-#         # e.g. Call 'facebook/blenderbot-400M-distill' hosted on HF Inference endpoints
-#         response = completion(model="huggingface/facebook/blenderbot-400M-distill", messages=messages, task="conversational")
-#         print(f"response: {response}")
-#     except Exception as e:
-#         pytest.fail(f"Error occurred: {e}")
 
-# test_hf_conversational_task()
 # Replicate API endpoints are unstable -> throw random CUDA errors -> this means our tests can fail even if our tests weren't incorrect.
 
 # def test_completion_replicate_llama_2():
@@ -792,7 +783,7 @@ def test_completion_bedrock_claude():
         print(response)
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
-test_completion_bedrock_claude()
+# test_completion_bedrock_claude()
 
 def test_completion_bedrock_claude_stream():
     print("calling claude")

litellm/tests/test_streaming.py

@@ -314,8 +314,9 @@ def test_completion_cohere_stream_bad_key():
 
 # test_completion_nlp_cloud_bad_key()
 
-# def test_completion_hf_stream():
+def test_completion_hf_stream():
-#     try:
+    try:
+        litellm.set_verbose = True
         # messages = [
         #     {
         #         "content": "Hello! How are you today?",
@@ -323,7 +324,7 @@ def test_completion_cohere_stream_bad_key():
         #     },
         # ]
         # response = completion(
-#             model="huggingface/meta-llama/Llama-2-7b-chat-hf", messages=messages, api_base="https://a8l9e3ucxinyl3oj.us-east-1.aws.endpoints.huggingface.cloud", stream=True, max_tokens=1000
+        #     model="huggingface/mistralai/Mistral-7B-Instruct-v0.1", messages=messages, api_base="https://n9ox93a8sv5ihsow.us-east-1.aws.endpoints.huggingface.cloud", stream=True, max_tokens=1000
         # )
         # complete_response = ""
         # # Add any assertions here to check the response
@@ -334,13 +335,37 @@ def test_completion_cohere_stream_bad_key():
         #     complete_response += chunk
         # if complete_response.strip() == "": 
         #     raise Exception("Empty response received")
-#         print(f"completion_response: {complete_response}")
+        # completion_response_1 = complete_response
-#     except InvalidRequestError as e:
+        messages = [
-#         pass
+            {
-#     except Exception as e:
+                "content": "Hello! How are you today?",
-#         pytest.fail(f"Error occurred: {e}")
+                "role": "user"
+            },
+            {
+                "content": "I'm doing well, thank you for asking! I'm excited to be here and help you with any questions or concerns you may have. What can I assist you with today?</s>",
+                "role": "assistant"
+            },
+        ]
+        response = completion(
+            model="huggingface/mistralai/Mistral-7B-Instruct-v0.1", messages=messages, api_base="https://n9ox93a8sv5ihsow.us-east-1.aws.endpoints.huggingface.cloud", stream=True, max_tokens=1000
+        )
+        complete_response = ""
+        # Add any assertions here to check the response
+        for idx, chunk in enumerate(response):
+            chunk, finished = streaming_format_tests(idx, chunk)
+            if finished:
+                break
+            complete_response += chunk
+        if complete_response.strip() == "": 
+            raise Exception("Empty response received")
+        # print(f"completion_response_1: {completion_response_1}")
+        print(f"completion_response: {complete_response}")
+    except InvalidRequestError as e:
+        pass
+    except Exception as e:
+        pytest.fail(f"Error occurred: {e}")
 
-# # test_completion_hf_stream()
+test_completion_hf_stream()
 
 # def test_completion_hf_stream_bad_key():
 #     try:
@@ -680,7 +705,7 @@ def test_completion_sagemaker_stream():
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
 
-test_completion_sagemaker_stream()
+# test_completion_sagemaker_stream()
 
 # test on openai completion call
 def test_openai_text_completion_call():

litellm/utils.py

@@ -2916,12 +2916,14 @@ class CustomStreamWrapper:
             print_verbose(f"data json: {data_json}")
             if "token" in data_json and "text" in data_json["token"]:
                 text = data_json["token"]["text"]
-                if "meta-llama/Llama-2" in self.model: #clean eos tokens like </s> from the returned output text
-                    if any(token in text for token in llama_2_special_tokens):
-                        text = text.replace("<s>", "").replace("</s>", "")
             if data_json.get("details", False) and data_json["details"].get("finish_reason", False):
                 is_finished = True
                 finish_reason = data_json["details"]["finish_reason"]
+            elif data_json.get("generated_text", False): # if full generated text exists, then stream is complete
+                text = "" # don't return the final bos token
+                is_finished = True
+                finish_reason = "stop"
+
             return {"text": text, "is_finished": is_finished, "finish_reason": finish_reason}
         elif "error" in chunk: 
             raise ValueError(chunk)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "litellm"
-version = "0.1.799"
+version = "0.1.800"
 description = "Library to easily interface with LLM API providers"
 authors = ["BerriAI"]
 license = "MIT License"