Is flash-attn-4 safe to use?

flash-attn-4 has no known vulnerabilities on the latest version (4.0.0b11). DepScope rates its health at 72/100 (moderate risk).

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

The latest version of flash-attn-4 is 4.0.0b11, released 2026-04-29.

Does flash-attn-4 have known vulnerabilities?

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

Is flash-attn-4 deprecated?

No, flash-attn-4 is actively maintained. Latest release: 4.0.0b11 (2026-04-29).

What are alternatives to flash-attn-4?

Popular alternatives to flash-attn-4 in PyPI include: boto3, packaging, idna, certifi, urllib3.

What license does flash-attn-4 use?

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

flash-attn-4

pypiv4.0.0b11

Flash Attention CUTE (CUDA Template Engine) implementation

License BSD 3-Clause Licensepermissive9 versions1 maintainers11 deps119,610 weekly dl

Dao-AILab/flash-attention

/ 100

Health

safe to use

[email protected] is safe to use (health: 72/100)

Health breakdown0 – 100

25/25

maintenance

14/20

popularity

25/25

security

6/15

maturity

2/15

community

Vulnerabilities

none known

Health History

Dependency Tree

License Audit

Dependencies (11)

nvidia-cutlass-dsl torch einops typing_extensions apache-tvm-ffi torch-c-dlpack-ext quack-kernels nvidia-cutlass-dsl[cu13]pytest;pytest-xdist;ruff;

API access

Get this data programmatically — free, no authentication.

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

flash-attn-4

pypiv4.0.0b11

Flash Attention CUTE (CUDA Template Engine) implementation

License BSD 3-Clause Licensepermissive9 versions1 maintainers11 deps119,610 weekly dl

Dao-AILab/flash-attention

/ 100

Health

safe to use

[email protected] is safe to use (health: 72/100)

Health breakdown0 – 100

25/25

maintenance

14/20

popularity

25/25

security

6/15

maturity

2/15

community

Vulnerabilities

none known

Health History

Dependency Tree

License Audit

Dependencies (11)

nvidia-cutlass-dsl torch einops typing_extensions apache-tvm-ffi torch-c-dlpack-ext quack-kernels nvidia-cutlass-dsl[cu13]pytest;pytest-xdist;ruff;

API access

Get this data programmatically — free, no authentication.

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