Use Example Inferences

Quickly explore Phoenix with concrete examples

Phoenix ships with a collection of examples so you can quickly try out the app on concrete use-cases. This guide shows you how to download, inspect, and launch the app with example inferences.

View Available Inferences

To see a list of inferences available for download, run


This displays the docstring for the phoenix.load_example function, which contain a list of inferences available for download.

Download Your Inference set of Choice

Choose the name of an inference set to download and pass it as an argument to phoenix.load_example. For example, run the following to download production and training data for our demo sentiment classification model:

inferences = px.load_example("sentiment_classification_language_drift")

px.load_example returns your downloaded data in the form of an ExampleInferences instance. After running the code above, you should see the following in your cell output.

ExampleInferences(primary=<Inferences "sentiment_classification_language_drift_primary">, reference=<Inferences "sentiment_classification_language_drift_reference">)

Inspect Your Inferences

Next, inspect the name, dataframe, and schema that define your primary inferences. First, run

prim_ds = inferences.primary

to see the name of the inferences in your cell output:


Next, run


to see your inferences' schema in the cell output:

Schema(prediction_id_column_name='prediction_id', timestamp_column_name='prediction_ts', feature_column_names=['reviewer_age', 'reviewer_gender', 'product_category', 'language'], tag_column_names=None, prediction_label_column_name='pred_label', prediction_score_column_name=None, actual_label_column_name='label', actual_score_column_name=None, embedding_feature_column_names={'text_embedding': EmbeddingColumnNames(vector_column_name='text_vector', raw_data_column_name='text', link_to_data_column_name=None)}, excluded_column_names=None)

Last, run

to get an overview of your inferences's underlying dataframe:

<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 33411 entries, 2022-05-01 07:00:16+00:00 to 2022-06-01 07:00:16+00:00
Data columns (total 10 columns):
 #   Column            Non-Null Count  Dtype
---  ------            --------------  -----
 0   prediction_ts     33411 non-null  datetime64[ns, UTC]
 1   reviewer_age      33411 non-null  int16
 2   reviewer_gender   33411 non-null  object
 3   product_category  33411 non-null  object
 4   language          33411 non-null  object
 5   text              33411 non-null  object
 6   text_vector       33411 non-null  object
 7   label             33411 non-null  object
 8   pred_label        33411 non-null  object
 9   prediction_id     0 non-null      object
dtypes: datetime64[ns, UTC](1), int16(1), object(8)
memory usage: 2.6+ MB

Launch the App

Launch Phoenix with

px.launch_app(inferences.primary, inferences.reference)

Follow the instructions in the cell output to open the Phoenix UI in your notebook or in a separate browser tab.

View Available Traces

Phoenix supports LLM application Traces and has examples that you can take a look at as well.\


# Load up the LlamaIndex RAG example

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