There is:
- Spells known
- Spells prepared
- Spells per day (or Long Rest, as its now called in D&D5)
Spells known and prepared is the same on Sorcerer (also Bard, Eldritch Knight, Arcane Trickster, and Warlock), who learn new spells by selecting them from a list at levelup.
Clerics, Druids, Paladins, Rangers learn all spells at levelup, but they have to prepare what spells to use from the available options.
Wizards learn spells at levelup like a Sorcerer, but can also learn them from scrolls. They have to prepare what spells to use.
Spells per day is the same for all pure spellcasters, except Warlock. Thats Bard, Cleric, Druid, Sorcerer and Wizard.
Spells per day is the same for Paladin and Ranger, if you count only every other level.
Spells per day is the same for Eldritch Knight and Arcane Trickster, if you count only every third level.
Spells for multiclassing is the same if you ignore Warlock (which is supposed to be treated separately) and combine the levels above as described.
As I understand it, Larian didnt strictly separated Warlock from all other classes with spellcasting abilitie as they are supposed to, which leads to some powerbuilds.
So you very likely simply confused Spells known/prepared (identical for Sorcerer) and Spells per day, aka per long rest.
Sorcerers know 1 + sorcerer level spells.
Sorcerers, like every other spellcaster, can for example cast 4 spells of tier 1 and 3 spells of tier 2 if their caster level is 4.
Last edited by Halycon Styxland; 14/09/23 09:13 AM. Reason: Added more details.