fwiw i think reasoning models have at least solved this. even the smallest reasoning model, o1-mini, gets it right first try on my test: A 10.01-pound bag of

fwiw i think reasoning models have at least solved this. even the smallest reasoning model, o1-mini, gets it right first try on my test: A 10.01-pound bag of fluffy cotton is heavier than a 9.99-pound bag of steel ingots. Despite the significant difference in density and volume between steel and cotton, the weights provided clearly indicate that the cotton bag has a greater mass. Summary: Steel ingots: 9.99 pounds Fluffy cotton: 10.01 pounds Conclusion: The 10.01-pound bag of cotton is heavier.