# FiftyOne vs Phoenix

## Key differences

- Phoenix and FiftyOne have a similar number of GitHub stars (11.7K vs 11.1K).
- FiftyOne had more development activity over the last 12 months: 8,917 commits vs 3,725.
- Phoenix is downloaded 4.7× as often on PyPI (145.1K vs 31.1K per week).
- FiftyOne is licensed under Apache-2.0; Phoenix under Elastic-2.0.
- FiftyOne is written primarily in TypeScript, Phoenix in Python.
- FiftyOne is the older project: its repository was created in 2020, Phoenix's in 2022.

| | FiftyOne | Phoenix |
|---|---|---|
| Description | Tool for visualizing, curating and evaluating computer vision datasets and models. | ML observability in a notebook with UMAP visualizations |
| GitHub stars | 11,143 | 11,704 |
| Commits (12 months) | 8,917 | 3,725 |
| Contributors | 170 | 235 |
| License | Apache-2.0 | Elastic-2.0 |
| Language | TypeScript | Python |
| Status | Active | Active |
| Install | `pip install fiftyone` | `pip install arize-phoenix` |

Source: https://awesomedataviz.com/compare/fiftyone-vs-phoenix/ · Data updated 2026-10-04 · Content: CC BY 4.0, Awesome Dataviz (https://awesomedataviz.com).