PyTorch
API: torch.nn.functional.logsigmoid
Strategy: Direct Mapping
JAX (Core)
API: jax.nn.log_sigmoid
Strategy: Direct Mapping
NumPy
API: —
Strategy: Macro '-np.logaddexp(0, -{x})'
Keras
API: keras.ops.log_sigmoid
Strategy: Direct Mapping
TensorFlow
API: tf.math.log_sigmoid
Strategy: Direct Mapping
Apple MLX
API: mlx.nn.layers.activations.LogSigmoid
Strategy: Macro '-mx.logaddexp(0, -{x})'
Flax NNX
API: jax.nn.log_sigmoid
Strategy: Direct Mapping
PaxML / Praxis
API: jax.nn.log_sigmoid
Strategy: Direct Mapping