Gnomish Lineage
You are part of a lineage that grants you supernatural abilities. Choose one of the following options. Whichever option you choose, Intelligence, Wisdom, or Charisma is your spellcasting ability for the spells you cast with this trait. Choose the ability when you select the lineage.
You always have the Speak with Animals spell prepared. You can cast it once without expending a spell slot, and you regain the ability to cast it in that way when you finish a Long Rest. You can also cast the spell using any spell slots you have of the appropriate level.
Source: PHB 2024