The Vault - Fallout Wiki

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The Vault - Fallout Wiki
Idiot Savant
Idiot Savant.png
Fallout 4
RequirementsLuck 5
Level 1, 11, and 34
EffectsRandom gain more XP for a short while
base id001d245e (level 1)

001d245f (level 2)

001d2460 (level 3)

You're not stupid! Just... different.

With the Idiot Savant perk, you'll randomly receive XP from completing any action. The lower your Intelligence, the higher the chance.

Fallout 4 loading screen hints

Idiot Savant is a perk in Fallout 4.


With the first rank of Idiot Savant, you randomly acquire a x3 experience boost from any action. The lower your intelligence, the higher the chance for a boost. The second rank boosts this bonus to x5 experience, and the third rank gives you x3 experience for a short time after randomly gaining bonus experience.


  • A Savant is typically an autistic person, but can also arise in people that have acquired a mental disorder or have damaged their central nervous system. However, since the perk states "You're not stupid! Just... different" and increases the chance of a x3 boost with lower intelligence, it can be inferred that this perk makes you autistic.
  • The chance of activation for the single extra XP is (12-INT)% per event, to a minimum of 1%.
  • Without this perk, XP boost from INT ranges from 1.03 to 1.30. At rank 1, the long-term XP boost ranges from 1.257 (at INT 1) to 1.352 (at INT 10). At rank 2, the long-term XP boost ranges from 1.4832 (at INT 1) to 1.404 (at INT 10).