# Opik

> Formerly CometLLM. Debug, evaluate, and monitor LLM applications with tracing and dashboards.

- Category: [Machine learning visualization tools](https://awesomedataviz.com/categories/machine-learning/)
- Website: https://www.comet.com/docs/opik/
- Repository: https://github.com/comet-ml/opik
- License: Apache-2.0
- Language: Python
- Status: Active (commits in the last 90 days)
- GitHub stars: 22,373
- Commits in the last 12 months: 4,323
- Contributors: 159
- Last commit: Oct 2, 2026
- Latest release: 2.2.88 (Oct 2, 2026)
- Install (PyPI): `pip install opik`, 424.8K downloads per week
- Topics: Machine learning & AI visualization

## Overview

Opik is an open-source ML visualization tool released under the Apache-2.0 license. Its GitHub repository has 22,373 stars, 1,841 forks, and 159 contributors. It is actively developed with 4,323 commits in the last 12 months. The latest release, 2.2.88, was published on Oct 2, 2026. On PyPI it is downloaded about 424.8K times per week.

## Alternatives

- [Netron](https://awesomedataviz.com/tools/netron/): Viewer for neural network, deep learning and machine learning models. (33.5K stars)
- [PlotNeuralNet](https://awesomedataviz.com/tools/plotneuralnet/): LaTeX code for drawing neural network architecture diagrams. (25K stars)
- [Phoenix](https://awesomedataviz.com/tools/phoenix/): ML observability in a notebook with UMAP visualizations (11.7K stars)
- [FiftyOne](https://awesomedataviz.com/tools/fiftyone/): Tool for visualizing, curating and evaluating computer vision datasets and models. (11.1K stars)
- [Visdom](https://awesomedataviz.com/tools/visdom/): Tool for real-time visualization and monitoring of live data such as ML experiments. (10.3K stars)
- [BertViz](https://awesomedataviz.com/tools/bertviz/): Visualize attention in Transformer language models such as BERT and GPT-2. (8.2K stars)

## Comparisons

- [Netron vs Opik](https://awesomedataviz.com/compare/netron-vs-opik/)
- [Opik vs PlotNeuralNet](https://awesomedataviz.com/compare/opik-vs-plotneuralnet/)
- [Opik vs Phoenix](https://awesomedataviz.com/compare/opik-vs-phoenix/)
- [FiftyOne vs Opik](https://awesomedataviz.com/compare/fiftyone-vs-opik/)

Source: https://awesomedataviz.com/tools/opik/ · Data updated 2026-10-04 · Content: CC BY 4.0, Awesome Dataviz (https://awesomedataviz.com).