No known security advisories.
The current version has no OSV.dev malware reports and no critical or high-severity vulnerabilities.
fastsafetensors has 1.8M monthly downloads and 155 GitHub stars. Version 0.3.2 supports Python <3.15,>=3.10, first published in 2024.
It is actively maintained under a permissive license, last released in Jun 2026.
It is built on top of typer. It is used by 2 tracked packages, including vllm and aphrodite-engine.
GitHub topics include pytorch and safetensors.
Package Insights
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
100
Popularity
46
Adoption
80
Community
60
Provenance
0
How the maintenance status was determined
Last commit
6 days ago
Monthly downloads
1,764,045
•
Active
Activity within 30 days
Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
1,764,045
Stars
155
Stars per 1k downloads
0.09
Industry Standard
> 10,000,000 monthly downloads
•
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
60,271
Month daily avg
58,802
Momentum
+2.5%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100Python version support tiers
requires_python
<3.15,>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
•
Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
Apache-2.0
•
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
32 days ago
Total releases
20
Releases/year
9.4
Rapid
Last release within 365 days and > 12 releases/year
•
Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
24
Monthly downloads
1,764,045
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
•
Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
58
Issue Burden
12.9
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
70.6%
contrib / forks
Stale Release
No
PR Velocity
Quiet
Weekly Downloads
GitHub Stars
Not all downloads include detailed metadata. Breakdowns reflect the subset that does.
Downloads by OS
Linux
33.0K
Windows
163
macOS
75
Python Versions
3.12
73.1%
24.2K
3.11
11.0%
3.7K
3.10
7.7%
2.5K
3.13
5.6%
1.9K
3.14
2.6%
863
Top Countries
1.
US
20.2K
US
2.
KR
5.5K
KR
3.
CN
1.2K
CN
4.
SG
1.0K
SG
5.
NL
524
NL
6.
DE
507
DE
7.
IN
462
IN
8.
JP
408
JP
9.
GB
407
GB
10.
CA
344
CA
Dependencies
1
- typer >=0.9.0
12 optional dependencies
- black[dev]
- fastsafetensor-3fs-reader[threefs]
- flake8[dev]
- isort[dev]
- mypy[dev]
- pre-commit[dev]
- pytest[test]
- pytest-cov[test]
- safetensors[test]
- torch[test]
- tqdm[progress]
- transformers[test]
Used By
2
GitHub Topics
Tags from the package's GitHub repository describing what it does.
Package Information
License
Apache-2.0
First Release
May 23, 2024
Last Release
1 month ago
Last Commit
6 days ago
Latest Version
0.3.2
Total Releases
20
Contributors
24
Open PRs
3
Archived
No
Python Versions
3.10
3.11
3.12
3.13
3.14
Wheels
cp310
cp311
cp312
cp313
cp314
cp39
Keywords
Tracking Since
January 6, 2026
Data Updated
July 5, 2026
Data Freshness
Fresh