head to head · open source
taipy vs Arize Phoenix
taipy has 19,436 GitHub stars, 1,993 forks, 225 open issues and last shipped 1 months ago. Arize Phoenix has 11,518 stars, 1,135 forks, 970 open issues and last shipped yesterday. taipy leads on adoption by 69% (19,436 vs 11,518 stars). taipy is written in Python under Apache-2.0; Arize Phoenix is written in Python under a custom or non-standard licence. taipy has attracted 10% as many forks as stars, Arize Phoenix 10%. Arize Phoenix was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| taipy | Arize Phoenix | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 12K |
| License | Apache-2.0 | Custom / other |
| Written in | Python | Python |
| Last push | 2026-08-10 | 2026-09-17 |
| Forks | ⑂ 2.0K | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick taipy if
- You weight community size — 19K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Arize Phoenix if
- You want the Arize Phoenix feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Python
- You evaluated both and Arize Phoenix fits your workflow better
About taipy
Taipy is an open source Python library and ecosystem for building data and AI driven web applications. It is designed for data scientists and machine learning engineers who want to turn data and AI algorithms into production ready web applications, and it lives in the Python ecosystem under the Apache 2.0 license. The project is maintained by Avaiga Private Limited and has been developed over roughly five years, with the repository showing 19,435 stars, 1,993 forks, and 225 open issues at the time of writing.
read the full taipy overview →
About Arize Phoenix
Arize Phoenix is an open source AI observability platform for experimentation, evaluation, and troubleshooting. It lives in the machine learning infrastructure ecosystem and is written in Python. The project provides tracing, evaluation, datasets, experiments, prompt management, and a playground for LLM applications.
read the full Arize Phoenix overview →
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Frequently asked questions
Is taipy or Arize Phoenix more popular?
taipy has 19,436 GitHub stars and Arize Phoenix has 11,518. taipy has the larger community by that measure.
Are taipy and Arize Phoenix free?
Both are open source. taipy is licensed under Apache-2.0, and Arize Phoenix has no licence declared in this registry. Both are free to self-host.
What is the difference between taipy and Arize Phoenix?
taipy is written in Python and Arize Phoenix in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, taipy or Arize Phoenix?
Choose taipy if you want the larger community (19,436 stars) or its Apache-2.0 licence terms. Choose Arize Phoenix if its feature set, stack or Custom / other licence fits better. Both are self-hostable.