head to head · open source
faiss vs taipy
faiss has 40,929 GitHub stars, 4,526 forks, 327 open issues and last shipped yesterday. taipy has 19,434 stars, 1,992 forks, 225 open issues and last shipped 1 months ago. faiss leads on adoption by 111% (40,929 vs 19,434 stars). faiss is written in C++ under MIT; taipy is written in Python under Apache-2.0. faiss has attracted 11% as many forks as stars, taipy 10%. faiss 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
| faiss | taipy | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 19K |
| License | MIT | Apache-2.0 |
| Written in | C++ | Python |
| Last push | 2026-09-18 | 2026-08-10 |
| Forks | ⑂ 4.5K | ⑂ 2.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick faiss if
- You weight community size — 41K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick taipy if
- You want the taipy feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and taipy fits your workflow better
About faiss
Faiss is an MIT licensed C++ library for efficient similarity search and clustering of dense vectors, with complete Python and NumPy wrappers, developed primarily at Meta's Fundamental AI Research group, and it is intended for engineers and researchers who need nearest neighbour search over vector sets that range from small collections to sets that possibly do not fit in RAM.
read the full faiss overview →
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 →
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Frequently asked questions
Is faiss or taipy more popular?
faiss has 40,929 GitHub stars and taipy has 19,434. faiss has the larger community by that measure.
Are faiss and taipy free?
Both are open source. faiss is licensed under MIT and taipy under Apache-2.0. Neither carries a licence fee.
What is the difference between faiss and taipy?
faiss is written in C++ and taipy 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, faiss or taipy?
Choose faiss if you want the larger community (40,929 stars) or its MIT licence terms. Choose taipy if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.