This article explores the most similar states to every US state, according to ChatGPT, a large language model trained by OpenAI. First, it analyzed a large amount of news articles, books, government reports, and web pages. Then, ChatGPT recognized relevant patterns in the textual data to determine the four most similar US states to each state.
It is interesting to compare its results to the State Similarity Index. This is another method of quantifying how similar states are to each other. The Index considers equally five aspects of states: demographics, culture, politics, infrastructure, and geography, assigning a score to each pair of states based on the data. Higher scores indicate greater similarity.
While both the State Similarity Index and ChatGPT aim to identify similarities between US States, they differ in the factors they consider and the methods they use. Unlike the State Similarity Index, which uses a set of predefined factors and weights them equally, ChatGPT’s approach is flexible. It considers a wide range of factors and assigns weights to them dynamically based on their relevance and significance to the given state. Both methods have their advantages and disadvantages.
It is important to note that ChatGPT’s analysis of US state similarities has certain limitations, such as biases in the training data, as well as the quality and availability of the data sources. In addition, ChatGPT may give slightly different answers based on the exact way you ask the question.
| Method | US State | 1st Most Similar | 2nd Most Similar | 3rd Most Similar | 4th Most Similar | |
|---|---|---|---|---|---|---|
| ChatGPT | Alabama | Mississippi | Louisiana | South Carolina | Arkansas | |
| CS Index | Alabama | Mississippi | Tennessee | South Carolina | Georgia | |
| ChatGPT | Alaska | Montana | Wyoming | North Dakota | Maine | |
| CS Index | Alaska | Montana | Idaho | Washington | Wyoming | |
| ChatGPT | Arizona | Nevada | New Mexico | Utah | Colorado | |
| CS Index | Arizona | Nevada | New Mexico | Idaho | Colorado | |
| ChatGPT | Arkansas | Mississippi | Louisiana | Tennessee | Kentucky | |
| CS Index | Arkansas | Alabama | Mississippi | Tennessee | Kentucky | |
| ChatGPT | California | Texas | Florida | New York | Illinois | |
| CS Index | California | Washington | Oregon | Nevada | Arizona | |
| ChatGPT | Colorado | Utah | Wyoming | Montana | Oregon | |
| CS Index | Colorado | Montana | Washington | Oregon | Wyoming | |
| ChatGPT | Connecticut | Massachusetts | Rhode Island | New Hampshire | New Jersey | |
| CS Index | Connecticut | Massachusettts | Rhode Island | New Jersey | New York | |
| ChatGPT | Delaware | Maryland | New Jersey | Rhode Island | Connecticut | |
| CS Index | Delaware | Maryland | New Jersey | Pennsylvania | Virginia | |
| ChatGPT | Georgia | North Carolina | Tennessee | Virginia | South Carolina | |
| CS Index | Georgia | South Carolina | North Carolina | Alabama | Mississippi | |
| ChatGPT | Florida | Arizona | Texas | Nevada | California | |
| CS Index | Florida | Georgia | South Carolina | North Carolina | Alabama | |
| ChatGPT | Hawaii | California | Florida | Washington | Oregon | |
| CS Index | Hawaii | California | Washington | Oregon | Maryland | |
| ChatGPT | Idaho | Montana | Wyoming | Utah | Oregon | |
| CS Index | Idaho | Wyoming | Montana | Utah | Oregon | |
| ChatGPT | Illinois | Michigan | Indiana | Ohio | Pennsylvania | |
| CS Index | Illinois | Minnesota | Wisconsin | Ohio | Michigan | |
| ChatGPT | Indiana | Ohio | Michigan | Illinois | Kentucky | |
| CS Index | Indiana | Ohio | Missouri | Michigan | Kentucky | |
| ChatGPT | Iowa | Nebraska | South Dakota | Minnesota | Kansas | |
| CS Index | Iowa | Nebraska | Kansas | Minnesota | Wisconsin | |
| ChatGPT | Kansas | Nebraska | Oklahoma | Iowa | Missouri | |
| CS Index | Kansas | Nebraska | Iowa | Oklahoma | Missouri | |
| ChatGPT | Kentucky | West Virginia | Tennessee | Ohio | Indiana | |
| CS Index | Kentucky | Tennessee | West Virginia | Missouri | Arkansas | |
| ChatGPT | Louisiana | Mississippi | Arkansas | Alabama | Texas | |
| CS Index | Louisiana | Mississippi | Alabama | Arkansas | Georgia | |
| ChatGPT | Maine | Vermont | New Hampshire | Wisconsin | Michigan | |
| CS Index | Maine | New Hampshire | Vermont | Connecticut | Massachusetts | |
| ChatGPT | Maryland | Delaware | Virginia | Pennsylvania | New Jersey | |
| CS Index | Maryland | Delaware | New Jersey | Connecticut | Virginia | |
| ChatGPT | Massachusetts | Connecticut | Rhode Island | Vermont | New Hampshire | |
| CS Index | Massachusetts | Rhode Island | Connecticut | New York | New Jersey | |
| ChatGPT | Michigan | Wisconsin | Ohio | Indiana | Minnesota | |
| CS Index | Michigan | Wisconsin | Ohio | Minnesota | Pennsylvania | |
| ChatGPT | Minnesota | Wisconsin | Michigan | Iowa | North Dakota | |
| CS Index | Minnesota | Wisconsin | Iowa | Michigan | Illinois | |
| ChatGPT | Mississippi | Alabama | Louisiana | Arkansas | South Carolina | |
| CS Index | Mississippi | Alabama | Louisiana | Arkansas | Georgia | |
| ChatGPT | Missouri | Illinois | Ohio | Kentucky | Tennessee | |
| CS Index | Missouri | Kentucky | Tennessee | Arkansas | Kansas | |
| ChatGPT | Montana | Wyoming | Idaho | North Dakota | South Dakota | |
| CS Index | Montana | Wyoming | Idaho | Colorado | South Dakota | |
| ChatGPT | Nebraska | Iowa | Kansas | South Dakota | North Dakota | |
| CS Index | Nebraska | Kansas | South Dakota | Iowa | North Dakota | |
| ChatGPT | Nevada | Arizona | Colorado | New Mexico | Utah | |
| CS Index | Nevada | Arizona | New Mexico | California | Colorado | |
| ChatGPT | New Hampshire | Vermont | Maine | Massachusetts | Rhode Island | |
| CS Index | New Hampshire | Maine | Vermont | Connecticut | Massachusetts | |
| ChatGPT | New Jersey | Connecticut | Maryland | Massachusetts | New York | |
| CS Index | New Jersey | Connecticut | New York | Maryland | Massachusetts | |
| ChatGPT | New Mexico | Arizona | Colorado | Nevada | Utah | |
| CS Index | New Mexico | Arizona | Nevada | Colorado | California | |
| ChatGPT | New York | Massachusettts | New Jersey | Connecticut | Illinois | |
| CS Index | New York | New Jersey | Connecticut | Massachusettts | Pennsylvania | |
| ChatGPT | North Carolina | Virginia | Tennessee | Georgia | South Carolina | |
| CS Index | North Carolina | South Carolina | Georgia | Virginia | Tennessee | |
| ChatGPT | North Dakota | South Dakota | Montana | Wyoming | Nebraska | |
| CS Index | North Dakota | South Dakota | Nebraska | Iowa | Minnesota | |
| ChatGPT | Ohio | Pennsylvania | Michigan | Indiana | Illinois | |
| CS Index | Ohio | Indiana | Michigan | Pennsylvania | Wisconsin | |
| ChatGPT | Oklahoma | Kansas | Texas | Missouri | Arkansas | |
| CS Index | Oklahoma | Arkansas | Kansas | Missouri | Kentucky | |
| ChatGPT | Oregon | Washington | Colorado | Vermont | Maine | |
| CS Index | Oregon | Washington | Colorado | California | Idaho | |
| ChatGPT | Pennsylvania | Ohio | Michigan | Illinois | Wisconsin | |
| CS Index | Pennsylvania | Ohio | Michigan | New York | Wisconsin | |
| ChatGPT | Rhode Island | Connecticut | Massachusetts | Vermont | New Hampshire | |
| CS Index | Rhode Island | Massachusetts | Connecticut | New Jersey | New York | |
| ChatGPT | South Carolina | North Carolina | Georgia | Tennessee | Virginia | |
| CS Index | South Carolina | Georgia | North Carolina | Alabama | Tennessee | |
| ChatGPT | South Dakota | North Dakota | Nebraska | Wyoming | Montana | |
| CS Index | South Dakota | North Dakota | Nebraska | Iowa | Kansas | |
| ChatGPT | Tennessee | Kentucky | Alabama | Arkansas | Georgia | |
| CS Index | Tennessee | Kentucky | Alabama | Arkansas | South Carolina | |
| ChatGPT | Texas | California | Florida | Arizona | Georgia | |
| CS Index | Texas | Oklahoma | Georgia | Louisiana | Mississippi | |
| ChatGPT | Utah | Idaho | Wyoming | Colorado | Nevada | |
| CS Index | Utah | Idaho | Colorado | Wyoming | Arizona | |
| ChatGPT | Vermont | Maine | New Hampshire | Oregon | Wisconsin | |
| CS Index | Vermont | Maine | New Hampshire | Connecticut | Massachusetts | |
| ChatGPT | Virginia | North Carolina | Maryland | Tennessee | Kentucky | |
| CS Index | Virginia | North Carolina | Maryland | Georgia | South Carolina | |
| ChatGPT | Washington | Oregon | Colorado | California | Massachusetts | |
| CS Index | Washington | Oregon | California | Colorado | Montana | |
| ChatGPT | West Virginia | Kentucky | Tennessee | Virginia | Ohio | |
| CS Index | West Virginia | Kentucky | Tennessee | Arkansas | Missouri | |
| ChatGPT | Wisconsin | Minnesota | Michigan | Iowa | Illinois | |
| CS Index | Wisconsin | Minnesota | Michigan | Iowa | Ohio | |
| ChatGPT | Wyoming | Montana | Idaho | North Dakota | South Dakota | |
| CS Index | Wyoming | Idaho | Montana | Colorado | South Dakota |
