Rerank Overview

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import cohere
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co = cohere.ClientV2(api_key="<YOUR API KEY>")
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query = "What is the capital of the United States?"
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docs = [
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    "Carson City is the capital city of the American state of Nevada. At the 2010 United States Census, Carson City had a population of 55,274.",
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    "The Commonwealth of the Northern Mariana Islands is a group of islands in the Pacific Ocean that are a political division controlled by the United States. Its capital is Saipan.",
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    "Charlotte Amalie is the capital and largest city of the United States Virgin Islands. It has about 20,000 people. The city is on the island of Saint Thomas.",
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    "Washington, D.C. (also known as simply Washington or D.C., and officially as the District of Columbia) is the capital of the United States. It is a federal district. The President of the USA and many major national government offices are in the territory. This makes it the political center of the United States of America.",
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    "Capital punishment (the death penalty) has existed in the United States since before the United States was a country. As of 2017, capital punishment is legal in 30 of the 50 states. The federal government (including the United States military) also uses capital punishment."]
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results = co.rerank(model="rerank-english-v3.0", query=query, documents=docs, top_n=5, return_documents=True)

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query = "What is the capital of the United States?"
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docs = [
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  {"Title":"Facts about Carson City","Content":"Carson City is the capital city of the American state of Nevada. At the 2010 United States Census, Carson City had a population of 55,274."},
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  {"Title":"The Commonwealth of Northern Mariana Islands","Content":"The Commonwealth of the Northern Mariana Islands is a group of islands in the Pacific Ocean that are a political division controlled by the United States. Its capital is Saipan."},
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  {"Title":"The Capital of United States Virgin Islands","Content":"Charlotte Amalie is the capital and largest city of the United States Virgin Islands. It has about 20,000 people. The city is on the island of Saint Thomas."},
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  {"Title":"Washington D.C.","Content":"Washington, D.C. (also known as simply Washington or D.C., and officially as the District of Columbia) is the capital of the United States. It is a federal district. The President of the USA and many major national government offices are in the territory. This makes it the political center of the United States of America."},
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	{"Title":"Capital Punishment in the US","Content":"Capital punishment (the death penalty) has existed in the United States since before the United States was a country. As of 2017, capital punishment is legal in 30 of the 50 states. The federal government (including the United States military) also uses capital punishment."}]
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results = co.rerank(model="rerank-english-v3.0", query=query, documents=docs, rank_fields=['Title','Content'],top_n=5, return_documents=True)

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{
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	"id": "75a94aa7-6761-4a64-a2ae-4bc0a62bc601",
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	"results": [
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		{
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			"document": {
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				"Content": "Washington, D.C. (also known as simply Washington or D.C., and officially as the District of Columbia) is the capital of the United States. It is a federal district. The President of the USA and many major national government offices are in the territory. This makes it the political center of the United States of America.",
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				"Title": "Washington D.C."
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			},
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			"index": 3,
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			"relevance_score": 0.9987405
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		},
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		{
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			"document": {
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				"Content": "Capital punishment (the death penalty) has existed in the United States since before the United States was a country. As of 2017, capital punishment is legal in 30 of the 50 states. The federal government (including the United States military) also uses capital punishment.",
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				"Title": "Capital Punishment in the US"
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			},
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			"index": 4,
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			"relevance_score": 0.5011778
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		},
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		{
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			"document": {
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				"Content": "Charlotte Amalie is the capital and largest city of the United States Virgin Islands. It has about 20,000 people. The city is on the island of Saint Thomas.",
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				"Title": "The Capital of United States Virgin Islands"
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			},
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			"index": 2,
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			"relevance_score": 0.10070161
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		},
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		{
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			"document": {
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				"Content": "The Commonwealth of the Northern Mariana Islands is a group of islands in the Pacific Ocean that are a political division controlled by the United States. Its capital is Saipan.",
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				"Title": "The Commonwealth of Northern Mariana Islands"
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			},
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			"index": 1,
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			"relevance_score": 0.03197956
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		},
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		{
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			"document": {
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				"Content": "Carson City is the capital city of the American state of Nevada. At the 2010 United States Census, Carson City had a population of 55,274.",
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				"Title": "Facts about Carson City"
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			},
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			"index": 0,
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			"relevance_score": 0.019456575
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		}
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	],
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	"meta": {
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		"api_version": {
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			"version": "2022-12-06"
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		},
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		"billed_units": {
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			"search_units": 1
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		}
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	}
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}