Test your knowledge of taxicab geometry, triangular numbers, the golden ratio and more.

Most of us have felt happy, angry, nervous, or just down at some point. We also know what these simple words mean. Well, what ...

True evaluation means testing AIs in full, multi-turn conversations to see if they deliver a seamless, consistent experience ...

Test your English grammar and vocabulary with 30 questions ranging from A1 to C1 levels. Improve your skills in sentence ...

Inspired by the passionate response to the semicolon’s supposed decline, this quiz invites you to test – and perhaps rediscover – your grasp of English grammar, from the basics to the ...

A reasoning engine infers logical consequences from a set of fixed axioms and observations. However, before it can make an inference, it must compile the axioms and observations which are given in a ...

AI models flunk language test that takes grammar out of the equation In a new study, the models made sense of words that shouldn’t make much sense, like “ball beach” and “ball red” ...

A seemingly innocent grammar question aimed at 11-year-old school children has sparked a surprising amount of attention online. Bad grammar isn't just a minor annoyance, it can actually be bad for ...

Master grammar with our top-rated grammar learning websites! Explore our comprehensive review of interactive platforms that make learning grammar engaging and effective.

In all grammar test trials, two scenes were presented to participants in which the agent/patient roles of the nouns were reversed. All 150 of the test sentences were repeated twice, for a total of 300 ...