We asked Grok to compile a list of the top 20 heavyweights of all-time.

Naming the best boxers of the heavyweight division in history is no easy task but X’s AI Grok put together 20 names.

1. Muhammad Ali – Known for his charisma, skill, and three reigns as world heavyweight champion.

2. Joe Louis – Held the title longer than any other heavyweight and had a record-breaking 25 title defenses.

3. Jack Johnson – The first African American world heavyweight champion, with a significant cultural impact.

4. George Foreman – Known for his power, he won the heavyweight title twice with a 20-year gap between victories.

5. Rocky Marciano – Undefeated in his professional career with a record of 49-0, including 43 knockouts.

6. Mike Tyson – The youngest heavyweight champion in history, known for his devastating knockout power.

7. Larry Holmes – Long-time champion with a record of 20 successful title defenses.

8. Joe Frazier – Famous for his rivalry with Ali, particularly their “Fight of the Century” in 1971.

9. Lennox Lewis – Unified all the major heavyweight belts during his reign.

10. Evander Holyfield – Known for his heart and resilience, he was the undisputed cruiserweight and heavyweight champion.

11. Jack Dempsey – His aggressive style and popularity helped boxing gain mainstream acceptance.

12. Sonny Liston – Known for his intimidating presence and knockout power.

13. Floyd Patterson – The first to regain the heavyweight title after losing it.

14. Wladimir Klitschko – Dominated the heavyweight division for over a decade with numerous defenses.

15. Vitali Klitschko – Known for his toughness and power, he was WBC champion.

16. Gene Tunney – Beat Jack Dempsey twice and was known for his defensive skills.

17. Ezzard Charles – Known for his technical skill, he was the world heavyweight champion from 1949 to 1951.

18. Jersey Joe Walcott – Famous for his late-blooming career, becoming champion at age 37.

19. Max Schmeling – Known for his bouts with Joe Louis, including a famous victory over him in 1936.

20. James J. Jeffries– Held the title for nearly six years at the turn of the 20th century.

Anything you would change? Let us know in the comments.