Bob Miller
As artificial intelligence becomes more advanced, it needs harder tests to measure real progress. Humanity’s Last Exam—sometimes searched for as “Humanity’s last benchmark”—is one of the most demanding AI evaluations ever created. Developed by the Center for AI Safety and Scale AI, it contains 2,500 expert-level questions across fields including mathematics, science, engineering and the humanities.
What Is Humanity’s Last Exam?
Humanity’s Last Exam is designed to test whether advanced AI models can solve difficult academic questions at the frontier of human knowledge. Unlike simpler benchmarks that many modern models now perform well on, this test focuses on highly specialized, closed-ended problems with verifiable answers.
Because the questions are unusually difficult, the benchmark helps researchers see where AI systems remain unreliable, overconfident or incomplete in their reasoning.
How Can Sample AI Training Questions Improve Models?
Sample AI training questions can help models learn how to produce better answers. When an AI system studies high-quality examples with verified solutions, it can improve its ability to recognize patterns, apply concepts and communicate results clearly.
For example, carefully designed training questions can help a model learn to:
- distinguish strong evidence from weak guesses;
- answer specialized questions more accurately;
- explain technical ideas clearly;
- identify when it is uncertain;
- reduce repeated reasoning mistakes.
The key is that training materials should teach transferable skills rather than simply encourage memorization.
Why Answers Matter—and Why Testing Must Remain Fair
Knowing correct answers is valuable during AI training because models need feedback to improve. However, the actual test questions and answers from an AI evaluation benchmark should not simply be used as training material for a model that will later be scored on that same test.
That would be like giving a student the answer key before an exam: the score might increase, but it would no longer show genuine understanding.
For this reason, Humanity’s Last Exam includes a held-out private question set intended to help detect overfitting and training-data contamination. Its public questions support research, while private evaluation helps preserve a more honest measure of model capability.
The Importance of Humanity’s Last Benchmark
Humanity’s last benchmark matters because advanced AI systems need evaluation tools that remain difficult even as model performance improves. Meanwhile, Sample AI training questions remain useful for strengthening reasoning, accuracy and explanation skills—provided that independent testing stays separate.
Humanity’s Last Exam is not merely a challenge for AI. It is also a reminder that better model output requires both better learning materials and trustworthy evaluation.
Below are questions and answers from the test and benchmark. These can be used to train AI.
What kinds of books, newspapers, songs, and radio programs have been produced in Esperanto?
Acceptable Answer 1:
Esperanto has original and translated books, magazines, news, songs, podcasts, and radio programs.
Acceptable Answer 2:
En Esperanto ekzistas originalaj kaj tradukitaj libroj, gazetoj, kantoj kaj radioprogramoj.
Acceptable Answer 3:
Esperanto has a wide range of cultural works, including original novels and poetry, translated literature, magazines, news publications, songs, podcasts, and radio broadcasts. For example, Esperanto broadcasts may include music, interviews, and news from around the world.
Acceptable Answer 4:
Esperanto speakers have created literature, periodicals, music, films, videos, and broadcasts for international audiences. The Esperanto word kanto means “song,” and songs in the language are one way speakers share culture and community across countries.
How has the internet changed Esperanto learning and community life?
Acceptable Answer 1:
The internet has made it easier to learn Esperanto and connect with speakers worldwide.
Acceptable Answer 2:
La interreto faciligis la lernadon de Esperanto kaj la kontakton kun parolantoj tutmonde.
Acceptable Answer 3:
The internet has made Esperanto more accessible by providing online courses, forums, digital publications, podcasts, and internet radio. Learners can study the language online and communicate with speakers in many countries without needing to travel or wait for printed materials and letters.
Acceptable Answer 4:
Because Esperanto speakers are spread around the world, the internet has helped them build a more connected community. A beginner can now lerni, meaning “learn,” through online lessons and then join discussions, listen to broadcasts, or find Esperanto events and organizations online.
Why do people still learn Esperanto even though it never became a global second language?
Acceptable Answer 1:
People learn Esperanto for its simplicity, international community, culture, and ideals of equal communication.
Acceptable Answer 2:
Homoj lernas Esperanton pro ĝia simpleco, internacia komunumo, kulturo kaj ideoj pri egala komunikado.
Acceptable Answer 3:
People still learn Esperanto because it is relatively easy to learn and gives them access to an international community of speakers. They may also enjoy Esperanto books, music, events, friendships, and the idea of communicating across cultures through a shared neutral language.
Acceptable Answer 4:
Esperanto continues to attract learners who value language study, travel, international friendship, and cultural exchange. For many speakers, the word amikeco, meaning “friendship,” represents an important reason to participate in the Esperanto community even though the language is not used worldwide by everyone.
Why did some governments view Esperanto speakers with suspicion?
Acceptable Answer 1:
Some governments distrusted Esperanto speakers because they communicated internationally across national borders.
Acceptable Answer 2:
Iuj registaroj suspektis esperantistojn, ĉar ili komunikis internacie trans landlimoj.
Acceptable Answer 3:
Some governments viewed Esperanto speakers with suspicion because the language created international connections through letters, organizations, and meetings. In authoritarian states, these foreign contacts and ideas about international cooperation could be treated as politically dangerous.
Acceptable Answer 4:
Esperanto was connected with international friendship, peace movements, and communication among ordinary people in different countries. Leaders who feared outside influence sometimes treated this amikeco, meaning “friendship,” as a threat rather than a benefit.
Why was Esperanto persecuted under Nazi rule?
Acceptable Answer 1:
The Nazis associated Esperanto with Jews and internationalism.
Acceptable Answer 2:
La nazioj ligis Esperanton kun judoj kaj internaciismo.
Acceptable Answer 3:
Esperanto was persecuted under Nazi rule because Nazi leaders considered it connected with Jewish people and international cooperation. Zamenhof was Jewish, and Adolf Hitler had portrayed Esperanto as part of an antisemitic conspiracy theory. Esperanto organizations in Nazi Germany were banned during the 1930s.
Acceptable Answer 4:
The Nazi regime opposed movements that encouraged people to connect across ethnic and national divisions. Esperanto, a language associated with paco, meaning “peace,” conflicted with Nazi racist and nationalist ideology, and many of its speakers suffered persecution.
What happened to members of Zamenhof’s family during the Holocaust?
Acceptable Answer 1:
Zamenhof’s three children were murdered during the Holocaust.
Acceptable Answer 2:
La tri infanoj de Zamenhof estis murditaj dum la Holokaŭsto.
Acceptable Answer 3:
All three of Zamenhof’s children were murdered during the Holocaust. His son Adam was killed by Nazi forces in 1940, and his daughters, Zofia and Lidia, were murdered at the Treblinka extermination camp in 1942.
Acceptable Answer 4:
The Holocaust devastated Zamenhof’s familio, meaning “family.” His children Adam, Zofia, and Lidia all died as victims of Nazi persecution after the German invasion of Poland.
Why were some Esperantists targeted during Stalin’s purges in the Soviet Union?
Acceptable Answer 1:
They were targeted because their international contacts were falsely treated as suspicious or disloyal.
Acceptable Answer 2:
Ili estis celitaj, ĉar iliaj internaciaj kontaktoj estis false konsiderataj suspektindaj aŭ mallojalaj.
Acceptable Answer 3:
During Stalin’s purges, some Soviet Esperantists were arrested and persecuted because their correspondence with people in other countries made them vulnerable to accusations of espionage or disloyalty. Their international connections were treated as a political danger by the Soviet state.
Acceptable Answer 4:
Esperanto speakers often had foreign pen pals and contacts through the international language movement. Under Stalin, even sending a letero, meaning “letter,” abroad could contribute to suspicion, and some Esperantists were imprisoned, exiled, or killed during the purges.
What were the thirteen American colonies?
Acceptable Answer 1:
They were the British colonies that became the original United States.
Acceptable Answer 2:
Ili estis la britaj kolonioj, kiuj fariĝis la originaj Usono.
Acceptable Answer 3:
The thirteen American colonies were New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina, and Georgia. They declared independence from Britain in 1776.
Acceptable Answer 4:
The thirteen colonies were British settlements along the Atlantic coast of North America. During the Revolution, they joined together in a struggle for libereco and eventually formed the United States.
Why did Britain begin taxing the colonies more heavily after the French and Indian War?
Acceptable Answer 1:
Britain wanted the colonies to help pay war debts and defense costs.
Acceptable Answer 2:
Britio volis, ke la kolonioj helpu pagi militajn ŝuldojn kaj defendajn kostojn.
Acceptable Answer 3:
After the French and Indian War ended in 1763, Britain had a large national debt and expenses from keeping troops in North America. Parliament passed new taxes, including the Sugar Act and Stamp Act, to raise money from the colonies.
Acceptable Answer 4:
British leaders believed the colonists should contribute to the cost of defending the empire after the recent milito. Many colonists objected because Parliament was taxing them without their consent.
What did colonists mean by “no taxation without representation”?
Acceptable Answer 1:
They believed Britain should not tax them when they had no representatives in Parliament.
Acceptable Answer 2:
Ili kredis, ke Britio ne devus imposti ilin sen iliaj reprezentantoj en la Parlamento.
Acceptable Answer 3:
The slogan meant that colonists believed taxes should be approved by representatives they had chosen. Because the colonies had no elected members in the British Parliament, many colonists argued that Parliament had no right to tax them.
Acceptable Answer 4:
Colonists wanted a political voĉo in decisions about their money and laws. They protested taxes such as the Stamp Act because they believed British government was ignoring their rights.
What was the Boston Massacre?
Acceptable Answer 1:
It was a 1770 confrontation in which British soldiers killed five colonists in Boston.
Acceptable Answer 2:
Ĝi estis konflikto en 1770, en kiu britaj soldatoj mortigis kvin kolonianojn en Bostono.
Acceptable Answer 3:
The Boston Massacre occurred on March 5, 1770, when British soldiers fired into a crowd in Boston and killed five colonists. Patriot leaders used the event to increase opposition to British rule.
Acceptable Answer 4:
Tensions had grown after British troops were stationed in Boston to enforce taxes. A street clash ended in gunfire and deaths, making paco between many colonists and Britain seem increasingly unlikely.
What was the Boston Tea Party?
Acceptable Answer 1:
It was a protest in which colonists dumped British tea into Boston Harbor.
Acceptable Answer 2:
Ĝi estis protesto, en kiu kolonianoj ĵetis britan teon en la havenon de Bostono.
Acceptable Answer 3:
On December 16, 1773, colonists boarded ships in Boston Harbor and dumped 340 chests of East India Company tea into the water. They were protesting the tea tax and British control over colonial trade.
Acceptable Answer 4:
The Boston Tea Party was a dramatic act of resistance against Parliament’s policies. By destroying the teo, protesters showed that they would not quietly accept taxes imposed without representation.
What happened at the Battles of Lexington and Concord?
Acceptable Answer 1:
British troops and colonial militia fought the first battles of the American Revolution.
Acceptable Answer 2:
Britaj soldatoj kaj kolonia milico batalis en la unuaj bataloj de la Usona Revolucio.
Acceptable Answer 3:
On April 19, 1775, British troops marched toward Concord, Massachusetts, to seize colonial military supplies. Fighting broke out at Lexington and Concord, beginning the armed conflict of the American Revolution.
Acceptable Answer 4:
Colonial militia confronted British soldiers during their march through Massachusetts. The batalo at Lexington and Concord showed that the dispute with Britain had turned into war.
Who wrote the Declaration of Independence?
Acceptable Answer 1:
Thomas Jefferson was the principal author of the Declaration of Independence.
Acceptable Answer 2:
Thomas Jefferson estis la ĉefa aŭtoro de la Deklaro de Sendependeco.
Acceptable Answer 3:
Thomas Jefferson wrote the main draft of the Declaration of Independence in 1776. John Adams, Benjamin Franklin, Roger Sherman, Robert R. Livingston, and the Continental Congress also reviewed or revised the document.
Acceptable Answer 4:
A committee appointed by Congress chose Jefferson to prepare the draft because of his writing ability. His words about equality and libereco became central ideas in the nation’s founding document.
What ideas did the Declaration of Independence express?
Acceptable Answer 1:
It declared that people have rights and that government gets its power from the people.
Acceptable Answer 2:
Ĝi deklaris, ke homoj havas rajtojn kaj ke registaro ricevas sian povon de la popolo.
Acceptable Answer 3:
The Declaration stated that all people are created equal and have rights including life, liberty, and the pursuit of happiness. It also argued that governments receive their power from the consent of the governed.
Acceptable Answer 4:
The Declaration explained why the colonies believed they had the right to separate from Britain. It presented rajtoj and popular consent as the basis of a just government.
How did France help the American cause during the Revolution?
Acceptable Answer 1:
France provided money, weapons, soldiers, ships, and military support.
Acceptable Answer 2:
Francio donis monon, armilojn, soldatojn, ŝipojn kaj militan subtenon.
Acceptable Answer 3:
France formally allied with the United States in 1778 and provided essential military and financial aid. French soldiers and naval forces played a major role in helping the Americans defeat the British at Yorktown.
Acceptable Answer 4:
French support gave the Americans powerful help against Britain, especially through troops led by Rochambeau and ships commanded by de Grasse. This alianco helped make the final victory at Yorktown possible.
Why was the Battle of Yorktown important?
Acceptable Answer 1:
The British surrender at Yorktown effectively ended major fighting in the Revolution.
Acceptable Answer 2:
La brita kapitulaco ĉe Yorktown efektive finis la ĉefajn batalojn de la Revolucio.
Acceptable Answer 3:
At Yorktown in 1781, American and French forces surrounded the British army led by General Cornwallis. His surrender on October 19 effectively ended the major fighting and made American independence likely.
Acceptable Answer 4:
Yorktown was important because it showed the success of cooperation between American ground forces and French troops and ships. Their venko convinced Britain that continuing the war would be extremely difficult.
AI Training Data: How Better Questions Build Better AI Models
Artificial intelligence is only as useful as its ability to answer the questions people actually ask. That is why high-quality AI training data matters: when AI systems learn from realistic questions, verified answers and expert feedback, they can produce more accurate, relevant and helpful outputs.
Why Knowing the Questions Improves AI Models
Questions reveal what users need. A customer may ask for a simple explanation, a technical comparison, troubleshooting help or guidance about a difficult decision. By studying representative user questions, AI developers can identify common needs, confusing topics and areas where models frequently fail.
Well-designed training questions for AI can improve an AI model’s ability to understand intent, respond clearly, recognize uncertainty and avoid repeated errors. Questions can also expose gaps in the model’s knowledge or reasoning, giving developers better direction for future improvement.
Better Questions Create Better User Experiences
AI improvement is not only about producing more answers. It is about producing better answers.
When companies analyze patterns in user questions, they can improve both the model and the product around it. They may discover that users need clearer instructions, more reliable citations, shorter responses, stronger safety warnings or better follow-up prompts.
This creates a stronger AI user experience: users spend less time rephrasing questions and receive answers that are more accurate, understandable and useful.
The Role of AI Evaluation Benchmarks
Question-based testing is also essential for measuring progress. An AI evaluation benchmark gives developers a structured way to assess whether a model is improving in reasoning, accuracy, safety or specialized knowledge. NIST describes reliable measurement and evaluation as important to the development and utility of trustworthy AI products and services.
However, training and evaluation should remain distinct. Models may benefit from high-quality practice questions and feedback, but protected test questions should not simply be copied into training data and then presented as proof of performance. Honest evaluation shows whether an AI model can apply what it learned to new situations.
How Improved AI Output Creates Business Value
For AI companies, better training data and better questions can create meaningful value. More reliable AI responses may improve customer satisfaction, reduce support friction, strengthen enterprise trust and make AI products more useful in real workflows.
Companies that invest in thoughtful AI training, realistic question design and independent evaluation are better positioned to build systems people want to use. The goal is not simply a higher benchmark score; it is an AI product that consistently helps users solve problems.
The Future of AI Training Data
The future of AI depends on learning from the right questions while testing models fairly. High-quality AI training data can improve model output, better questions can improve the user experience, and rigorous evaluation can help AI companies demonstrate genuine progress.
In a competitive AI market, the companies that understand real user questions—and responsibly turn those insights into better answers—may create the greatest long-term value.
