10-Minute Tour

What it covers

• Creating a table
• Adding computed columns
• Pixeltable is persistent
• GPT-4o
• UDFs: Enhancing Pixeltable's capabilities

What it uses

Install

terminal

$pip install torch transformers timm openai pixeltable

Environment variables it names

OPENAI_API_KEY

Pixeltable calls

huggingface.detr_for_object_detection()openai.chat_completions()pxt.create_table()@pxt.udfinsert()add_computed_column()

A look at the code

from pixeltable.functions import huggingface

t.add_computed_column(
    detections=huggingface.detr_for_object_detection(
        t.input_image, model_id='facebook/detr-resnet-50'
    )
)

One cell of the notebook, copied as it is. Open it in Colab for the rest.

• Tables and Data Operations

  Create and manage tables, insert, update and delete data, and filter and select rows with where(), select() and order_by().

  Updated Oct 28, 2026Open in Colab

• Computed Columns

  This guide introduces one of Pixeltable's most essential and powerful concepts: computed columns.

  Updated Sep 3, 2026Open in Colab

• Queries and Expressions

  Expressions are the basic building blocks of Pixeltable.

  Updated Oct 6, 2026Open in Colab

• UDFs in Pixeltable

  Pixeltable comes with a library of built-in functions and integrations, but sooner or later, you'll want to introduce some customized logic into your workflow.

  Updated Sep 3, 2026Open in Colab