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Logging

Log Proxy input, output, and exceptions using:

  • Langfuse
  • OpenTelemetry
  • Custom Callbacks
  • Langsmith
  • DataDog
  • DynamoDB
  • etc.

Getting the LiteLLM Call ID​

LiteLLM generates a unique call_id for each request. This call_id can be used to track the request across the system. This can be very useful for finding the info for a particular request in a logging system like one of the systems mentioned in this page.

curl -i -sSL --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Authorization: Bearer sk-1234' \
    --header 'Content-Type: application/json' \
    --data '{
      "model": "gpt-3.5-turbo",
      "messages": [{"role": "user", "content": "what llm are you"}]
    }' | grep 'x-litellm'

The output of this is:

x-litellm-call-id: b980db26-9512-45cc-b1da-c511a363b83f
x-litellm-model-id: cb41bc03f4c33d310019bae8c5afdb1af0a8f97b36a234405a9807614988457c
x-litellm-model-api-base: https://x-example-1234.openai.azure.com
x-litellm-version: 1.40.21
x-litellm-response-cost: 2.85e-05
x-litellm-key-tpm-limit: None
x-litellm-key-rpm-limit: None

A number of these headers could be useful for troubleshooting, but the x-litellm-call-id is the one that is most useful for tracking a request across components in your system, including in logging tools.

Redacting UserAPIKeyInfo​

Redact information about the user api key (hashed token, user_id, team id, etc.), from logs.

Currently supported for Langfuse, OpenTelemetry, Logfire, ArizeAI logging.

litellm_settings: 
  callbacks: ["langfuse"]
  redact_user_api_key_info: true

Removes any field with user_api_key_* from metadata.

What gets logged? StandardLoggingPayload​

Found under kwargs["standard_logging_object"]. This is a standard payload, logged for every response.

class StandardLoggingPayload(TypedDict):
    id: str
    call_type: str
    response_cost: float
    total_tokens: int
    prompt_tokens: int
    completion_tokens: int
    startTime: float
    endTime: float
    completionStartTime: float
    model_map_information: StandardLoggingModelInformation
    model: str
    model_id: Optional[str]
    model_group: Optional[str]
    api_base: str
    metadata: StandardLoggingMetadata
    cache_hit: Optional[bool]
    cache_key: Optional[str]
    saved_cache_cost: Optional[float]
    request_tags: list                         
    end_user: Optional[str]
    requester_ip_address: Optional[str]         # IP address of requester
    requester_metadata: Optional[dict]          # metadata passed in request in the "metadata" field
    messages: Optional[Union[str, list, dict]]
    response: Optional[Union[str, list, dict]]
    model_parameters: dict
    hidden_params: StandardLoggingHiddenParams

class StandardLoggingHiddenParams(TypedDict):
    model_id: Optional[str]
    cache_key: Optional[str]
    api_base: Optional[str]
    response_cost: Optional[str]
    additional_headers: Optional[dict]


class StandardLoggingModelInformation(TypedDict):
    model_map_key: str
    model_map_value: Optional[ModelInfo]

Logging Proxy Input/Output - Langfuse​

We will use the --config to set litellm.success_callback = ["langfuse"] this will log all successfull LLM calls to langfuse. Make sure to set LANGFUSE_PUBLIC_KEY and LANGFUSE_SECRET_KEY in your environment

Step 1 Install langfuse

pip install langfuse>=2.0.0

Step 2: Create a config.yaml file and set litellm_settings: success_callback

model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["langfuse"]

Step 3: Set required env variables for logging to langfuse

export LANGFUSE_PUBLIC_KEY="pk_kk"
export LANGFUSE_SECRET_KEY="sk_ss"
# Optional, defaults to https://cloud.langfuse.com
export LANGFUSE_HOST="https://xxx.langfuse.com"

Step 4: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

litellm --test

Expected output on Langfuse

Logging Metadata to Langfuse​

Pass metadata as part of the request body

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data '{
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ],
    "metadata": {
        "generation_name": "ishaan-test-generation",
        "generation_id": "gen-id22",
        "trace_id": "trace-id22",
        "trace_user_id": "user-id2"
    }
}'

Team based Logging to Langfuse​

👉 Tutorial - Allow each team to use their own Langfuse Project / custom callbacks

Redacting Messages, Response Content from Langfuse Logging​

Set litellm.turn_off_message_logging=True This will prevent the messages and responses from being logged to langfuse, but request metadata will still be logged.

model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["langfuse"]
  turn_off_message_logging: True

If you have this feature turned on, you can override it for specific requests by setting a request header LiteLLM-Disable-Message-Redaction: true.

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --header 'LiteLLM-Disable-Message-Redaction: true' \
    --data '{
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ]
}'

LiteLLM-specific Tags on Langfuse - cache_hit, cache_key​

Use this if you want to control which LiteLLM-specific fields are logged as tags by the LiteLLM proxy. By default LiteLLM Proxy logs no LiteLLM-specific fields

LiteLLM specific fieldDescriptionExample Value
cache_hitIndicates whether a cache hit occured (True) or not (False)true, false
cache_keyThe Cache key used for this requestd2b758c****
proxy_base_urlThe base URL for the proxy server, the value of env var PROXY_BASE_URL on your serverhttps://proxy.example.com
user_api_key_aliasAn alias for the LiteLLM Virtual Key.prod-app1
user_api_key_user_idThe unique ID associated with a user's API key.user_123, user_456
user_api_key_user_emailThe email associated with a user's API key.user@example.com, admin@example.com
user_api_key_team_aliasAn alias for a team associated with an API key.team_alpha, dev_team

Usage

Specify langfuse_default_tags to control what litellm fields get logged on Langfuse

Example config.yaml 

model_list:
  - model_name: gpt-4
    litellm_params:
      model: openai/fake
      api_key: fake-key
      api_base: https://exampleopenaiendpoint-production.up.railway.app/

litellm_settings:
  success_callback: ["langfuse"]

  # 👇 Key Change
  langfuse_default_tags: ["cache_hit", "cache_key", "proxy_base_url", "user_api_key_alias", "user_api_key_user_id", "user_api_key_user_email", "user_api_key_team_alias", "semantic-similarity", "proxy_base_url"]

🔧 Debugging - Viewing RAW CURL sent from LiteLLM to provider​

Use this when you want to view the RAW curl request sent from LiteLLM to the LLM API

Pass metadata as part of the request body

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data '{
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ],
    "metadata": {
        "log_raw_request": true
    }
}'

Expected Output on Langfuse

You will see raw_request in your Langfuse Metadata. This is the RAW CURL command sent from LiteLLM to your LLM API provider

Logging Proxy Input/Output in OpenTelemetry format​

info

[Optional] Customize OTEL Service Name and OTEL TRACER NAME by setting the following variables in your environment

OTEL_TRACER_NAME=<your-trace-name>     # default="litellm"
OTEL_SERVICE_NAME=<your-service-name>` # default="litellm"

Step 1: Set callbacks and env vars

Add the following to your env

OTEL_EXPORTER="console"

Add otel as a callback on your litellm_config.yaml

litellm_settings:
  callbacks: ["otel"]

Step 2: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --detailed_debug

Test Request

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data ' {
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ]
    }'

Step 3: Expect to see the following logged on your server logs / console

This is the Span from OTEL Logging

{
    "name": "litellm-acompletion",
    "context": {
        "trace_id": "0x8d354e2346060032703637a0843b20a3",
        "span_id": "0xd8d3476a2eb12724",
        "trace_state": "[]"
    },
    "kind": "SpanKind.INTERNAL",
    "parent_id": null,
    "start_time": "2024-06-04T19:46:56.415888Z",
    "end_time": "2024-06-04T19:46:56.790278Z",
    "status": {
        "status_code": "OK"
    },
    "attributes": {
        "model": "llama3-8b-8192"
    },
    "events": [],
    "links": [],
    "resource": {
        "attributes": {
            "service.name": "litellm"
        },
        "schema_url": ""
    }
}

🎉 Expect to see this trace logged in your OTEL collector

Redacting Messages, Response Content from OTEL Logging​

Set message_logging=False for otel, no messages / response will be logged

litellm_settings:
  callbacks: ["otel"]

## 👇 Key Change
callback_settings:
  otel:
    message_logging: False

Context propagation across Services Traceparent HTTP Header​

❓ Use this when you want to pass information about the incoming request in a distributed tracing system

✅ Key change: Pass the traceparent header in your requests. Read more about traceparent headers here

traceparent: 00-80e1afed08e019fc1110464cfa66635c-7a085853722dc6d2-01

Example Usage

  1. Make Request to LiteLLM Proxy with traceparent header
import openai
import uuid

client = openai.OpenAI(api_key="sk-1234", base_url="http://0.0.0.0:4000")
example_traceparent = f"00-80e1afed08e019fc1110464cfa66635c-02e80198930058d4-01"
extra_headers = {
    "traceparent": example_traceparent
}
_trace_id = example_traceparent.split("-")[1]

print("EXTRA HEADERS: ", extra_headers)
print("Trace ID: ", _trace_id)

response = client.chat.completions.create(
    model="llama3",
    messages=[
        {"role": "user", "content": "this is a test request, write a short poem"}
    ],
    extra_headers=extra_headers,
)

print(response)
# EXTRA HEADERS:  {'traceparent': '00-80e1afed08e019fc1110464cfa66635c-02e80198930058d4-01'}
# Trace ID:  80e1afed08e019fc1110464cfa66635c
  1. Lookup Trace ID on OTEL Logger

Search for Trace=80e1afed08e019fc1110464cfa66635c on your OTEL Collector

Forwarding Traceparent HTTP Header to LLM APIs​

Use this if you want to forward the traceparent headers to your self hosted LLMs like vLLM

Set forward_traceparent_to_llm_provider: True in your config.yaml. This will forward the traceparent header to your LLM API

danger

Only use this for self hosted LLMs, this can cause Bedrock, VertexAI calls to fail

litellm_settings:
  forward_traceparent_to_llm_provider: True

Custom Callback Class [Async]​

Use this when you want to run custom callbacks in python

Step 1 - Create your custom litellm callback class​

We use litellm.integrations.custom_logger for this, more details about litellm custom callbacks here

Define your custom callback class in a python file.

Here's an example custom logger for tracking key, user, model, prompt, response, tokens, cost. We create a file called custom_callbacks.py and initialize proxy_handler_instance 

from litellm.integrations.custom_logger import CustomLogger
import litellm

# This file includes the custom callbacks for LiteLLM Proxy
# Once defined, these can be passed in proxy_config.yaml
class MyCustomHandler(CustomLogger):
    def log_pre_api_call(self, model, messages, kwargs): 
        print(f"Pre-API Call")
    
    def log_post_api_call(self, kwargs, response_obj, start_time, end_time): 
        print(f"Post-API Call")

    def log_stream_event(self, kwargs, response_obj, start_time, end_time):
        print(f"On Stream")
        
    def log_success_event(self, kwargs, response_obj, start_time, end_time): 
        print("On Success")

    def log_failure_event(self, kwargs, response_obj, start_time, end_time): 
        print(f"On Failure")

    async def async_log_success_event(self, kwargs, response_obj, start_time, end_time):
        print(f"On Async Success!")
        # log: key, user, model, prompt, response, tokens, cost
        # Access kwargs passed to litellm.completion()
        model = kwargs.get("model", None)
        messages = kwargs.get("messages", None)
        user = kwargs.get("user", None)

        # Access litellm_params passed to litellm.completion(), example access `metadata`
        litellm_params = kwargs.get("litellm_params", {})
        metadata = litellm_params.get("metadata", {})   # headers passed to LiteLLM proxy, can be found here

        # Calculate cost using  litellm.completion_cost()
        cost = litellm.completion_cost(completion_response=response_obj)
        response = response_obj
        # tokens used in response 
        usage = response_obj["usage"]

        print(
            f"""
                Model: {model},
                Messages: {messages},
                User: {user},
                Usage: {usage},
                Cost: {cost},
                Response: {response}
                Proxy Metadata: {metadata}
            """
        )
        return

    async def async_log_failure_event(self, kwargs, response_obj, start_time, end_time): 
        try:
            print(f"On Async Failure !")
            print("\nkwargs", kwargs)
            # Access kwargs passed to litellm.completion()
            model = kwargs.get("model", None)
            messages = kwargs.get("messages", None)
            user = kwargs.get("user", None)

            # Access litellm_params passed to litellm.completion(), example access `metadata`
            litellm_params = kwargs.get("litellm_params", {})
            metadata = litellm_params.get("metadata", {})   # headers passed to LiteLLM proxy, can be found here

            # Acess Exceptions & Traceback
            exception_event = kwargs.get("exception", None)
            traceback_event = kwargs.get("traceback_exception", None)

            # Calculate cost using  litellm.completion_cost()
            cost = litellm.completion_cost(completion_response=response_obj)
            print("now checking response obj")
            
            print(
                f"""
                    Model: {model},
                    Messages: {messages},
                    User: {user},
                    Cost: {cost},
                    Response: {response_obj}
                    Proxy Metadata: {metadata}
                    Exception: {exception_event}
                    Traceback: {traceback_event}
                """
            )
        except Exception as e:
            print(f"Exception: {e}")

proxy_handler_instance = MyCustomHandler()

# Set litellm.callbacks = [proxy_handler_instance] on the proxy
# need to set litellm.callbacks = [proxy_handler_instance] # on the proxy

Step 2 - Pass your custom callback class in config.yaml​

We pass the custom callback class defined in Step1 to the config.yaml. Set callbacks to python_filename.logger_instance_name

In the config below, we pass

  • python_filename: custom_callbacks.py
  • logger_instance_name: proxy_handler_instance. This is defined in Step 1

callbacks: custom_callbacks.proxy_handler_instance

model_list:
  - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo

litellm_settings:
  callbacks: custom_callbacks.proxy_handler_instance # sets litellm.callbacks = [proxy_handler_instance]

Step 3 - Start proxy + test request​

litellm --config proxy_config.yaml
curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Authorization: Bearer sk-1234' \
    --data ' {
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "good morning good sir"
        }
    ],
    "user": "ishaan-app",
    "temperature": 0.2
    }'

Resulting Log on Proxy​

On Success
    Model: gpt-3.5-turbo,
    Messages: [{'role': 'user', 'content': 'good morning good sir'}],
    User: ishaan-app,
    Usage: {'completion_tokens': 10, 'prompt_tokens': 11, 'total_tokens': 21},
    Cost: 3.65e-05,
    Response: {'id': 'chatcmpl-8S8avKJ1aVBg941y5xzGMSKrYCMvN', 'choices': [{'finish_reason': 'stop', 'index': 0, 'message': {'content': 'Good morning! How can I assist you today?', 'role': 'assistant'}}], 'created': 1701716913, 'model': 'gpt-3.5-turbo-0613', 'object': 'chat.completion', 'system_fingerprint': None, 'usage': {'completion_tokens': 10, 'prompt_tokens': 11, 'total_tokens': 21}}
    Proxy Metadata: {'user_api_key': None, 'headers': Headers({'host': '0.0.0.0:4000', 'user-agent': 'curl/7.88.1', 'accept': '*/*', 'authorization': 'Bearer sk-1234', 'content-length': '199', 'content-type': 'application/x-www-form-urlencoded'}), 'model_group': 'gpt-3.5-turbo', 'deployment': 'gpt-3.5-turbo-ModelID-gpt-3.5-turbo'}

Logging Proxy Request Object, Header, Url​

Here's how you can access the url, headers, request body sent to the proxy for each request

class MyCustomHandler(CustomLogger):
    async def async_log_success_event(self, kwargs, response_obj, start_time, end_time):
        print(f"On Async Success!")

        litellm_params = kwargs.get("litellm_params", None)
        proxy_server_request = litellm_params.get("proxy_server_request")
        print(proxy_server_request)

Expected Output

{
  "url": "http://testserver/chat/completions",
  "method": "POST",
  "headers": {
    "host": "testserver",
    "accept": "*/*",
    "accept-encoding": "gzip, deflate",
    "connection": "keep-alive",
    "user-agent": "testclient",
    "authorization": "Bearer None",
    "content-length": "105",
    "content-type": "application/json"
  },
  "body": {
    "model": "Azure OpenAI GPT-4 Canada",
    "messages": [
      {
        "role": "user",
        "content": "hi"
      }
    ],
    "max_tokens": 10
  }
}

Logging model_info set in config.yaml​

Here is how to log the model_info set in your proxy config.yaml. Information on setting model_info on config.yaml

class MyCustomHandler(CustomLogger):
    async def async_log_success_event(self, kwargs, response_obj, start_time, end_time):
        print(f"On Async Success!")

        litellm_params = kwargs.get("litellm_params", None)
        model_info = litellm_params.get("model_info")
        print(model_info)

Expected Output

{'mode': 'embedding', 'input_cost_per_token': 0.002}

Logging responses from proxy​

Both /chat/completions and /embeddings responses are available as response_obj

Note: for /chat/completions, both stream=True and non stream responses are available as response_obj

class MyCustomHandler(CustomLogger):
    async def async_log_success_event(self, kwargs, response_obj, start_time, end_time):
        print(f"On Async Success!")
        print(response_obj)

Expected Output /chat/completion [for both stream and non-stream responses]

ModelResponse(
    id='chatcmpl-8Tfu8GoMElwOZuj2JlHBhNHG01PPo',
    choices=[
        Choices(
            finish_reason='stop',
            index=0,
            message=Message(
                content='As an AI language model, I do not have a physical body and therefore do not possess any degree or educational qualifications. My knowledge and abilities come from the programming and algorithms that have been developed by my creators.',
                role='assistant'
            )
        )
    ],
    created=1702083284,
    model='chatgpt-v-2',
    object='chat.completion',
    system_fingerprint=None,
    usage=Usage(
        completion_tokens=42,
        prompt_tokens=5,
        total_tokens=47
    )
)

Expected Output /embeddings

{
    'model': 'ada',
    'data': [
        {
            'embedding': [
                -0.035126980394124985, -0.020624293014407158, -0.015343423001468182,
                -0.03980357199907303, -0.02750781551003456, 0.02111034281551838,
                -0.022069307044148445, -0.019442008808255196, -0.00955679826438427,
                -0.013143060728907585, 0.029583381488919258, -0.004725852981209755,
                -0.015198921784758568, -0.014069183729588985, 0.00897879246622324,
                0.01521205808967352,
                # ... (truncated for brevity)
            ]
        }
    ]
}

Custom Callback APIs [Async]​

info

This is an Enterprise only feature Get Started with Enterprise here

Use this if you:

  • Want to use custom callbacks written in a non Python programming language
  • Want your callbacks to run on a different microservice

Step 1. Create your generic logging API endpoint​

Set up a generic API endpoint that can receive data in JSON format. The data will be included within a "data" field.

Your server should support the following Request format:

curl --location https://your-domain.com/log-event \
     --request POST \
     --header "Content-Type: application/json" \
     --data '{
       "data": {
         "id": "chatcmpl-8sgE89cEQ4q9biRtxMvDfQU1O82PT",
         "call_type": "acompletion",
         "cache_hit": "None",
         "startTime": "2024-02-15 16:18:44.336280",
         "endTime": "2024-02-15 16:18:45.045539",
         "model": "gpt-3.5-turbo",
         "user": "ishaan-2",
         "modelParameters": "{'temperature': 0.7, 'max_tokens': 10, 'user': 'ishaan-2', 'extra_body': {}}",
         "messages": "[{'role': 'user', 'content': 'This is a test'}]",
         "response": "ModelResponse(id='chatcmpl-8sgE89cEQ4q9biRtxMvDfQU1O82PT', choices=[Choices(finish_reason='length', index=0, message=Message(content='Great! How can I assist you with this test', role='assistant'))], created=1708042724, model='gpt-3.5-turbo-0613', object='chat.completion', system_fingerprint=None, usage=Usage(completion_tokens=10, prompt_tokens=11, total_tokens=21))",
         "usage": "Usage(completion_tokens=10, prompt_tokens=11, total_tokens=21)",
         "metadata": "{}",
         "cost": "3.65e-05"
       }
     }'

Reference FastAPI Python Server

Here's a reference FastAPI Server that is compatible with LiteLLM Proxy:

# this is an example endpoint to receive data from litellm
from fastapi import FastAPI, HTTPException, Request

app = FastAPI()


@app.post("/log-event")
async def log_event(request: Request):
    try:
        print("Received /log-event request")
        # Assuming the incoming request has JSON data
        data = await request.json()
        print("Received request data:")
        print(data)

        # Your additional logic can go here
        # For now, just printing the received data

        return {"message": "Request received successfully"}
    except Exception as e:
        print(f"Error processing request: {str(e)}")
        import traceback

        traceback.print_exc()
        raise HTTPException(status_code=500, detail="Internal Server Error")


if __name__ == "__main__":
    import uvicorn
    uvicorn.run(app, host="127.0.0.1", port=4000)

Step 2. Set your GENERIC_LOGGER_ENDPOINT to the endpoint + route we should send callback logs to​

os.environ["GENERIC_LOGGER_ENDPOINT"] = "http://localhost:4000/log-event"

Step 3. Create a config.yaml file and set litellm_settings: success_callback = ["generic"]​

Example litellm proxy config.yaml

model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["generic"]

Start the LiteLLM Proxy and make a test request to verify the logs reached your callback API

Logging LLM IO to Langsmith​

  1. Set success_callback: ["langsmith"] on litellm config.yaml

If you're using a custom LangSmith instance, you can set the LANGSMITH_BASE_URL environment variable to point to your instance.

litellm_settings:
  success_callback: ["langsmith"]

environment_variables:
  LANGSMITH_API_KEY: "lsv2_pt_xxxxxxxx"
  LANGSMITH_PROJECT: "litellm-proxy"

  LANGSMITH_BASE_URL: "https://api.smith.langchain.com" # (Optional - only needed if you have a custom Langsmith instance)
  1. Start Proxy
litellm --config /path/to/config.yaml
  1. Test it! 
curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data ' {
      "model": "fake-openai-endpoint",
      "messages": [
        {
          "role": "user",
          "content": "Hello, Claude gm!"
        }
      ],
    }
'

Expect to see your log on Langfuse

Logging LLM IO to Arize AI​

  1. Set success_callback: ["arize"] on litellm config.yaml
model_list:
  - model_name: gpt-4
    litellm_params:
      model: openai/fake
      api_key: fake-key
      api_base: https://exampleopenaiendpoint-production.up.railway.app/

litellm_settings:
  callbacks: ["arize"]

environment_variables:
    ARIZE_SPACE_KEY: "d0*****"
    ARIZE_API_KEY: "141a****"
    ARIZE_ENDPOINT: "https://otlp.arize.com/v1" # OPTIONAL - your custom arize api endpoint
  1. Start Proxy
litellm --config /path/to/config.yaml
  1. Test it! 
curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data ' {
      "model": "fake-openai-endpoint",
      "messages": [
        {
          "role": "user",
          "content": "Hello, Claude gm!"
        }
      ],
    }
'

Expect to see your log on Langfuse

Logging LLM IO to Langtrace​

  1. Set success_callback: ["langtrace"] on litellm config.yaml
model_list:
  - model_name: gpt-4
    litellm_params:
      model: openai/fake
      api_key: fake-key
      api_base: https://exampleopenaiendpoint-production.up.railway.app/

litellm_settings:
  callbacks: ["langtrace"]

environment_variables:
    LANGTRACE_API_KEY: "141a****"
  1. Start Proxy
litellm --config /path/to/config.yaml
  1. Test it! 
curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data ' {
      "model": "fake-openai-endpoint",
      "messages": [
        {
          "role": "user",
          "content": "Hello, Claude gm!"
        }
      ],
    }
'

Logging LLM IO to Galileo​

[BETA]

Log LLM I/O on www.rungalileo.io

info

Beta Integration

Required Env Variables

export GALILEO_BASE_URL=""  # For most users, this is the same as their console URL except with the word 'console' replaced by 'api' (e.g. http://www.console.galileo.myenterprise.com -> http://www.api.galileo.myenterprise.com)
export GALILEO_PROJECT_ID=""
export GALILEO_USERNAME=""
export GALILEO_PASSWORD=""

Quick Start​

  1. Add to Config.yaml
model_list:
- litellm_params:
    api_base: https://exampleopenaiendpoint-production.up.railway.app/
    api_key: my-fake-key
    model: openai/my-fake-model
  model_name: fake-openai-endpoint

litellm_settings:
  success_callback: ["galileo"] # 👈 KEY CHANGE
  1. Start Proxy
litellm --config /path/to/config.yaml
  1. Test it! 
curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data ' {
      "model": "fake-openai-endpoint",
      "messages": [
        {
          "role": "user",
          "content": "what llm are you"
        }
      ],
    }
'

🎉 That's it - Expect to see your Logs on your Galileo Dashboard

Logging Proxy Cost + Usage - OpenMeter​

Bill customers according to their LLM API usage with OpenMeter

Required Env Variables

# from https://openmeter.cloud
export OPENMETER_API_ENDPOINT="" # defaults to https://openmeter.cloud
export OPENMETER_API_KEY=""

Quick Start​

  1. Add to Config.yaml
model_list:
- litellm_params:
    api_base: https://openai-function-calling-workers.tasslexyz.workers.dev/
    api_key: my-fake-key
    model: openai/my-fake-model
  model_name: fake-openai-endpoint

litellm_settings:
  success_callback: ["openmeter"] # 👈 KEY CHANGE
  1. Start Proxy
litellm --config /path/to/config.yaml
  1. Test it! 
curl --location 'http://0.0.0.0:4000/chat/completions' \
--header 'Content-Type: application/json' \
--data ' {
      "model": "fake-openai-endpoint",
      "messages": [
        {
          "role": "user",
          "content": "what llm are you"
        }
      ],
    }
'

Logging Proxy Input/Output - DataDog​

We will use the --config to set litellm.success_callback = ["datadog"] this will log all successfull LLM calls to DataDog

Step 1: Create a config.yaml file and set litellm_settings: success_callback

model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["datadog"] # logs llm success logs on datadog
  service_callback: ["datadog"] # logs redis, postgres failures on datadog

Step 2: Set Required env variables for datadog

DD_API_KEY="5f2d0f310***********" # your datadog API Key
DD_SITE="us5.datadoghq.com"       # your datadog base url
DD_SOURCE="litellm_dev"       # [OPTIONAL] your datadog source. use to differentiate dev vs. prod deployments

Step 3: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data '{
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ],
    "metadata": {
        "your-custom-metadata": "custom-field",
    }
}'

Expected output on Datadog

Logging Proxy Input/Output - DynamoDB​

We will use the --config to set

  • litellm.success_callback = ["dynamodb"]
  • litellm.dynamodb_table_name = "your-table-name"

This will log all successfull LLM calls to DynamoDB

Step 1 Set AWS Credentials in .env

AWS_ACCESS_KEY_ID = ""
AWS_SECRET_ACCESS_KEY = ""
AWS_REGION_NAME = ""

Step 2: Create a config.yaml file and set litellm_settings: success_callback

model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["dynamodb"]
  dynamodb_table_name: your-table-name

Step 3: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data ' {
    "model": "Azure OpenAI GPT-4 East",
    "messages": [
        {
        "role": "user",
        "content": "what llm are you"
        }
    ]
    }'

Your logs should be available on DynamoDB

Data Logged to DynamoDB /chat/completions​

{
  "id": {
    "S": "chatcmpl-8W15J4480a3fAQ1yQaMgtsKJAicen"
  },
  "call_type": {
    "S": "acompletion"
  },
  "endTime": {
    "S": "2023-12-15 17:25:58.424118"
  },
  "messages": {
    "S": "[{'role': 'user', 'content': 'This is a test'}]"
  },
  "metadata": {
    "S": "{}"
  },
  "model": {
    "S": "gpt-3.5-turbo"
  },
  "modelParameters": {
    "S": "{'temperature': 0.7, 'max_tokens': 100, 'user': 'ishaan-2'}"
  },
  "response": {
    "S": "ModelResponse(id='chatcmpl-8W15J4480a3fAQ1yQaMgtsKJAicen', choices=[Choices(finish_reason='stop', index=0, message=Message(content='Great! What can I assist you with?', role='assistant'))], created=1702641357, model='gpt-3.5-turbo-0613', object='chat.completion', system_fingerprint=None, usage=Usage(completion_tokens=9, prompt_tokens=11, total_tokens=20))"
  },
  "startTime": {
    "S": "2023-12-15 17:25:56.047035"
  },
  "usage": {
    "S": "Usage(completion_tokens=9, prompt_tokens=11, total_tokens=20)"
  },
  "user": {
    "S": "ishaan-2"
  }
}

Data logged to DynamoDB /embeddings​

{
  "id": {
    "S": "4dec8d4d-4817-472d-9fc6-c7a6153eb2ca"
  },
  "call_type": {
    "S": "aembedding"
  },
  "endTime": {
    "S": "2023-12-15 17:25:59.890261"
  },
  "messages": {
    "S": "['hi']"
  },
  "metadata": {
    "S": "{}"
  },
  "model": {
    "S": "text-embedding-ada-002"
  },
  "modelParameters": {
    "S": "{'user': 'ishaan-2'}"
  },
  "response": {
    "S": "EmbeddingResponse(model='text-embedding-ada-002-v2', data=[{'embedding': [-0.03503197431564331, -0.020601635798811913, -0.015375726856291294,
  }
}

Logging Proxy Input/Output - Sentry​

If api calls fail (llm/database) you can log those to Sentry:

Step 1 Install Sentry

pip install --upgrade sentry-sdk

Step 2: Save your Sentry_DSN and add litellm_settings: failure_callback

export SENTRY_DSN="your-sentry-dsn"
model_list:
 - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  # other settings
  failure_callback: ["sentry"]
general_settings: 
  database_url: "my-bad-url" # set a fake url to trigger a sentry exception

Step 3: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

litellm --test

Logging Proxy Input/Output Athina​

Athina allows you to log LLM Input/Output for monitoring, analytics, and observability.

We will use the --config to set litellm.success_callback = ["athina"] this will log all successfull LLM calls to athina

Step 1 Set Athina API key

ATHINA_API_KEY = "your-athina-api-key"

Step 2: Create a config.yaml file and set litellm_settings: success_callback

model_list:
  - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  success_callback: ["athina"]

Step 3: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data ' {
    "model": "gpt-3.5-turbo",
    "messages": [
        {
        "role": "user",
        "content": "which llm are you"
        }
    ]
    }'

(BETA) Moderation with Azure Content Safety​

Azure Content-Safety is a Microsoft Azure service that provides content moderation APIs to detect potential offensive, harmful, or risky content in text.

We will use the --config to set litellm.success_callback = ["azure_content_safety"] this will moderate all LLM calls using Azure Content Safety.

Step 0 Deploy Azure Content Safety

Deploy an Azure Content-Safety instance from the Azure Portal and get the endpoint and key.

Step 1 Set Athina API key

AZURE_CONTENT_SAFETY_KEY = "<your-azure-content-safety-key>"

Step 2: Create a config.yaml file and set litellm_settings: success_callback

model_list:
  - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  callbacks: ["azure_content_safety"]
  azure_content_safety_params:
    endpoint: "<your-azure-content-safety-endpoint>"
    key: "os.environ/AZURE_CONTENT_SAFETY_KEY"

Step 3: Start the proxy, make a test request

Start proxy

litellm --config config.yaml --debug

Test Request

curl --location 'http://0.0.0.0:4000/chat/completions' \
    --header 'Content-Type: application/json' \
    --data ' {
        "model": "gpt-3.5-turbo",
        "messages": [
            {
                "role": "user",
                "content": "Hi, how are you?"
            }
        ]
    }'

An HTTP 400 error will be returned if the content is detected with a value greater than the threshold set in the config.yaml. The details of the response will describe:

  • The source : input text or llm generated text
  • The category : the category of the content that triggered the moderation
  • The severity : the severity from 0 to 10

Step 4: Customizing Azure Content Safety Thresholds

You can customize the thresholds for each category by setting the thresholds in the config.yaml

model_list:
  - model_name: gpt-3.5-turbo
    litellm_params:
      model: gpt-3.5-turbo
litellm_settings:
  callbacks: ["azure_content_safety"]
  azure_content_safety_params:
    endpoint: "<your-azure-content-safety-endpoint>"
    key: "os.environ/AZURE_CONTENT_SAFETY_KEY"
    thresholds:
      Hate: 6
      SelfHarm: 8
      Sexual: 6
      Violence: 4
info

thresholds are not required by default, but you can tune the values to your needs. Default values is 4 for all categories