Short answer: Rebirth as soon as you meet the requirements—but make sure you've milked your current run for all the useful upgrades you can get. The faster you start stacking multipliers, the faster you snowball.

When you rebirth in Steal a Brainrot, you:
I used to delay rebirthing, thinking I'd lose too much progress. Big mistake. Once I started rebirthing earlier, my income doubled in half the grind time.
| Rebirth Level | Cash Required | Required Brainrots | Multiplier | Bonus Starting Cash | +Slots & Lock+ | Key Unlocks |
|---|---|---|---|---|---|---|
| 1 | 1 M | Trippi Troppi, Tung Tung Sahur | 0.5× | 5,000 | +10 s | Friend Controller, Iron Slap, Gravity Coil, Bee Launcher |
| 2 | 3 M | Boneca Ambalabu, Brr Brr Patapim | 1× | 10,000 | +10 s, +1 slot | Gold Slap, Coil Combo, Rage Table |
| 3 | 12.5 M | Trulimero Trulicina, Chimpanzini Bananini | 2× | 25,000 | +10 s, +1 slot | Diamond Slap, Grapple Hook, Taser Gun |
| 4 | 35 M | Chef Cabracadabra, Glorbo Fruttodrillo | 3× | 50,000 | +10 s, +1 slot | Emerald Slap, Invisibility Cloak, Boogie Bomb |
| 5 | 100 M | Frigo Camelo, Orangutini Ananassini | 4× | 100,000 | +10 s, +1 slot | Ruby Slap, Medusa's Head |
| 6 | 350 M | Bombardilo Crocodilo, Bombombini Gusini | 5× | 250,000 | +10 s, +1 slot | Dark Matter Slap, Web Slinger |
| 7 | 1 B | Bombombini Gusini | 6× | 500,000 | +10 s, +1 slot | Flame Slap, Quantum Cloner, All Seeing Sentry |
| 8 | 5 B | Cocofanto Elefanto | 7× | 1 M | +10 s, +1 slot | Nuclear Slap, Rainbowrath Sword |
| 9 | 25 B | Girafa Celestre | 8× | 5 M | +10 s, +1 slot | Galaxy Slap, Laser Cape |
| 10 | 250 B | Tralalero Tralala | 9× | 25 M | +10 s, +1 slot | Glitched Slap, Body Swap Potion |
| 11 | 1 T | Odin Din Din Dun | 10× | 45 M | +10 s, +1 slot | Splatter Slap, Paintball Gun |
| 12 | 7 T | Trenostruzzo Turbo 3000 | 11× | 500 M | +10 s, +1 slot | Heart Balloon, Magnet |
| 13 | 50 T | Ballerino Lololo | 12× | 1 B | +10 s, +1 slot | Megaphone, Beehive |
| 14 | 100 T | Trippi Troppi Troppa Trippa | 13× | 2.5 T | +10 s, +1 slot | Gummy Slap (Bear), Subspace Mine |
If you’re looking to push your Steal a Brainrot progress to the next level, timing your rebirths right is only part of the game. Once you’ve stacked your multipliers and snagged those sweet permanent upgrades, you’ll find yourself farming faster, raiding smarter, and eyeing even rarer loot. And when you’re ready to expand your arsenal, there are always plenty of Steal a Brainrot items for sale to give you that extra edge in your next run.
Grind until you have the exact amount needed for your next rebirth.
Before you hit rebirth:
If you're close to unlocking a weapon or upgrade that will stay after rebirth, grab it before resetting.
Don't fall into the “just one more upgrade” trap forever.
Once you've got what will benefit you long-term—rebirth.
Your multiplier means you'll earn back what you lost faster than before.
After rebirth:
The faster you embrace rebirth as part of the grind loop, the faster you'll own the leaderboard.