Character matchup
Lelouch vi Britannia vs Light Yagami: who is smarter?
Reviewed September 2026By the LifeScore Editorial TeamEditorial policy
Code Geass
Lelouch vi Britannia
150
range 140 to 160 · medium confidence
Chess prodigy with loaded dice
Death Note
Light Yagami
155
range 145 to 165 · medium confidence
Ruthless planner, fatally proud
Round by round
Six ratings out of ten for each, from the profiles. Lelouch vi Britannia takes 0 of the rounds, Light Yagami takes 4, and the higher overall estimate is Light Yagami by 5.
| Round | Lelouch vi Britannia | Light Yagami | Edge |
|---|---|---|---|
| Deduction | 7/10 | 8/10 | Light Yagami |
| Strategy | 9/10 | 9/10 | Level |
| Knowledge | 7/10 | 8/10 | Light Yagami |
| Invention | 5/10 | 6/10 | Light Yagami |
| Adaptability | 9/10 | 9/10 | Level |
| Reading people | 8/10 | 9/10 | Light Yagami |
What settles it
Both are teenagers with a cheat code. Light has a notebook that kills at a distance, and Lelouch has a power that makes people obey. The interesting question is what each does with a tool that removes most of the risk, and both are cautious, methodical and hard to read.
Lelouch plans wars. He directs a small force against a much larger empire, improvises when the situation changes, and has to inspire people as well as outfox them. Light plans an investigation. His game is to stay invisible to a brilliant pursuer for years, with a single mechanism to work with. Lelouch shows more range of action, and Light shows more depth of concealment.
Both are undone by pride and by the people they care about. Light cannot stop himself from showing off to the one man who can catch him, and Lelouch makes his worst calls when someone he loves is on the board. On our evidence they are the closest pair we cover, and the tiebreaker is that Light is shown solving more problems by reasoning alone.
The strongest evidence for each
Lelouch vi Britannia
- The Narita landslide (Code Geass, Season 1)
- The Zero Requiem (Code Geass, R2 finale)
Light Yagami
- Turning an FBI agent into a weapon (Death Note, early Kira investigation)
- The memory-loss plan (Death Note, Yotsuba arc)
- Turning Rem against L (Death Note, Rem and L's death)
Lelouch vi Britannia vs Light Yagami: common questions
Who is smarter, Lelouch vi Britannia or Light Yagami?+
Close, with Light a few points ahead on deduction and knowledge and Lelouch level with him on strategy and better at improvising.
What is Lelouch vi Britannia's IQ compared with Light Yagami's?+
We estimate Lelouch vi Britannia at about 150 (range 140 to 160) and Light Yagami at about 155 (range 145 to 165). Both are fan-analysis estimates built from what each character does in their story.
Who would win a battle of wits, Lelouch vi Britannia or Light Yagami?+
On a battlefield or in a crisis Lelouch wins. Over a slow game of concealment and deception Light would probably out-wait him.