fastFM
A library for Factorization Machines with high performance.
- Status
- UnmaintainedNo commits in 1981 days.
- Last checked
- Checked · Oct 16, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
FastFM is a Python library that implements Factorization Machines using stochastic gradient descent. It's designed to handle large datasets efficiently and can be used for tasks like recommendation systems, regression, and classification.
FastFM stands out with its efficient handling of large datasets and support for stochastic gradient descent optimization, making it ideal for tasks that require high performance on big data.
When it fits — and when it doesn’t
A good fit for
Developers working on recommendation engines who need efficient handling of large datasets.
Data scientists performing regression and classification tasks that require stochastic gradient descent optimization.
Look elsewhere if
Teams needing real-time processing capabilities as FastFM is optimized for batch processing.
Projects requiring a web-based UI, as it's primarily a library for local use.
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited documentation and examples
The official repository lacks detailed tutorials and example use cases, making it difficult for new users to understand how to effectively utilize the library.
- 02
Narrow focus on specific machine learning tasks
FastFM is primarily designed for Factorization Machines which limits its applicability in scenarios where other models or techniques are more suitable.
- 03
Performance issues with extremely sparse datasets
While efficient with large datasets, FastFM can exhibit performance degradation when dealing with very sparse data matrices due to the underlying implementation of Factorization Machines.
- 04
Lack of active development and community support
The project has not seen significant updates in recent years, and the community around FastFM is relatively small compared to more mainstream machine learning libraries.
What it does well
Efficient handling of large datasets
Support for regression and classification tasks
Stochastic gradient descent optimization
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up fastFM
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for fastFM’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
Markdown
[](https://navigateaitools.com/explorer/tool/fastfm)HTML
<a href="https://navigateaitools.com/explorer/tool/fastfm"><img src="https://navigateaitools.com/badge/fastfm.svg" alt="fastFM — tracked on AI Navigator" height="58"></a>