Collin Burns is an American speedcuber who formerly held the world record for solving the RubikâÂÂs Cube in 5.25 seconds.
In 2014, Burns set a North American continental record of 5.93 seconds for solving the 3ÃÂ3ÃÂ3 cube, and he beat the world champion at the time, Feliks Zemdegs in the US Nationals 2014 speedcubing competition.
On April 25, 2015, Burns set the world record for the fastest 3ÃÂ3ÃÂ3 Rubik's Cube single solve with a time of 5.25. The solve was recorded at a Rubik's Cube competition at Central Bucks West High School in Doylestown, Pennsylvania. He set the record age 15. He set that time (which was the world record for approximately seven months) using the YuXin brand 3ÃÂ3ÃÂ3 cube. Burns solved the cube 0.3 seconds faster than the previous world record of 5.55 seconds, set by Mats Valk. His record was later broken by Lucas Etter with a time of 4.90 on November 21, 2015.
Burns is now a researcher in the field of AI alignment. In 2020, a team of researchers, including Dan Hendrycks and Burns, developed the Massive Multitask Language Understanding (MMLU) model, a benchmark to assess large-language models.