Is flash-attn-4 safe to use?

flash-attn-4 has no known vulnerabilities on the latest version (4.0.0b22). DepScope rates its health at 61/100 (moderate risk).

What is the latest version of flash-attn-4?

The latest version of flash-attn-4 is 4.0.0b22, released 2026-07-15.

No known vulnerabilities on the latest version of flash-attn-4.

No, flash-attn-4 is actively maintained. Latest release: 4.0.0b22 (2026-07-15).

Popular alternatives to flash-attn-4 in PyPI include: boto3, requests, charset_normalizer, six, cffi.

flash-attn-4 is licensed under BSD 3-Clause License.

pypiv4.0.0b22

Flash Attention CUTE (CUDA Template Engine) implementation

License BSD 3-Clause Licensepermissive20 versions1 maintainers11 deps

61

/ 100

Health

use with caution

[email protected] low health (61/100) — consider alternatives

Health breakdown0 – 100

25/25

maintenance

0/20

popularity

25/25

security

9/15

maturity

2/15

community

Vulnerabilities

0

none known

Dependencies (11)

API access

Get this data programmatically — free, no authentication.

curl https://depscope.dev/api/check/pypi/flash-attn-4