level 3 warlock spell slots
Baldur's Gate III | BEST Warlock Spells (All Levels) - YouTube
Create Sorcery Points is implemented for all spell levels up to level 9 per 5e RAW (Tasha's Cauldron of Everything), and you can use Warlock Spell Slots before your other Spell Slots.
Spell Slots in D&D 5e: All You Need to Know!
The Warlock table shows how many spell slots you have to cast your warlock spells of 1st through 5th level. The table also shows what the level of those slots is; all of your spell slots are the same level.
D&D Bard 5E class guide | Dicebreaker
As a 7th-level cleric, you have 4 cantrips known, as well as the following spell slots: 4 @ level 1, 3 @ level 2, 3 @ level 3, and 1 @ level 4.