It's used at build time in 47 crates (of which 42 optionally, 7 directly). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) bindgen_cuda version
3.2K 3 candle-kernels build ^0.1.1
240 1 ebcandle-kernels build ^0.1.1
120 5 candle-flash-attn build ^0.1.1
oxidized-cuda-kernels build ^0.1.1
150 4 candle-examples optional build ^0.1.1
codegeex4-candle optional build ^0.1.1
1 stable-diffusion optional build ^0.1.1