# Separation models

These constants are used with Sep to indicate the AI model to use for separating stems.

Constant name	Value
`MODEL_LEGACY`	htdemucs_6s
`MODEL_STANDARD`	htdemucs
`MODEL_STANDARD_LG`	htdemucs_ft
`MODEL_STANDARD_XL`	htdemucs_mmi
`MODEL_DEFAULT`	mdx_extra
`MODEL_BETTER_MD`	mdx
`MODEL_BETTER_SM`	mdx_extra_q
`MODEL_BETTER_XS`	mdx_q