# Standard Metrics Metrics are the basis of our open-source starter SDK. Farsight AI's evaluation suite consists of 4 standard metrics: **Factuality**, **Consistency**, **Quality**, and **Conciseness**. You are able to test your LLM systems with these metrics either individually or in combination. See the examples below for more information on the setup of each metric. {% hint style="info" %} Make sure you have your [OpenAI API Key](https://platform.openai.com/account/api-keys) before you begin. {% endhint %} ### Factuality `factuality_score()` Evaluate the factuality of your LLM's response and get a result of `true` (factual) or `false` (hallucination or generally unsubstantiated)

Param	Type	Description
query	str	instruction given to LLM
output	str	response from LLM
knowledge	str	optional: additional context to help evaluate factuality

Output Type	Output Definition
boolean	factuality of given query based on knowledge (True means output is correct)

Output Type

Output Definition

boolean

factuality of given query based on knowledge

(True means output is correct)

from farsightai import FarsightAI

# Replace with your openAI credentials
OPEN_AI_KEY = "<openai_key>"

query = "Who is the president of the United States"
farsight = FarsightAI(openai_key=OPEN_AI_KEY)

# Replace this with the actual output of your LLM application
output = "As of my last knowledge update in January 2022, Joe Biden is the President of the United States. However, keep in mind that my information might be outdated as my training data goes up to that time, and I do not have browsing capabilities to check for the most current information. Please verify with up-to-date sources."
knowledge = None # optional param to include additional knowledge

factuality_score = farsight.factuality_score(query, output, knowledge)
print("output: ", factuality_score)
# output: true

*** ### Consistency `consistency_score()` Evaluate your LLM's response consistency on a scale of zero to one, with zero being entirely inconsistent and one being entirely consistent.

Param	Type	Description
instruction	str	instruction given to LLM
response	str	response from LLM
num_samples	int	optional: amount of samples you want to evaluate the llm's consistency against. Increases num_samples increases latency The default value is 3.

Output Type	Output Definition
float	score from zero to one, with zero being entirely inconsistent and one being entirely consistent

from farsightai import FarsightAI

# Replace with your openAI credentials
OPEN_AI_KEY = "<openai_key>"

query = "Who is the president of the United States"
farsight = FarsightAI(openai_key=OPEN_AI_KEY)

# Replace this with the actual output of your LLM application
output = "As of my last knowledge update in January 2022, Joe Biden is the President of the United States. However, keep in mind that my information might be outdated as my training data goes up to that time, and I do not have browsing capabilities to check for the most current information. Please verify with up-to-date sources."

consistency_score = farsight.consistency_score(query, output)

print("score: ", consistency_score)
# score: 1.0

### Quality `quality_score()` Evaluate your LLM's response quality on a score of 1-5 with 1 being subpar / unusable quality and 5 being exemplary, human-like quality.

Param	Type	Description
instruction	str	instruction given to LLM
response	str	response from LLM

Output Type	Output Definition
int	score from 1-5, 1 being subpar / unusable quality and 5 being exemplary, human-like quality

```python from farsightai import FarsightAI # Replace with your openAI credentials OPEN_AI_KEY = "" query = "Who is the president of the United States" farsight = FarsightAI(openai_key=OPEN_AI_KEY) # Replace this with the actual output of your LLM application output = "As of my last knowledge update in January 2022, Joe Biden is the President of the United States. However, keep in mind that my information might be outdated as my training data goes up to that time, and I do not have browsing capabilities to check for the most current information. Please verify with up-to-date sources." quality_score = farsight.quality_score(query, output) print("score: ", quality_score) # score: 4 ``` *** ### Conciseness `conciseness_score()` Evaluate your LLM response conciseness on a score of 1-5 from 1 being extremely verbose and 5 being very concise. Note that conciseness does not only capture word count, but also, how much information-rich each incremental word is.

Param	Type	Description
query	str	instruction given to LLM
output	str	response from LLM

Output Type	Output Definition
int	score from 1-5, 1 being extremely verbose and 5 being very concise

```python from farsightai import FarsightAI # Replace with your openAI credentials OPEN_AI_KEY = "" query = "Who is the president of the United States" farsight = FarsightAI(openai_key=OPEN_AI_KEY) # Replace this with the actual output of your LLM application output = "As of my last knowledge update in January 2022, Joe Biden is the President of the United States. However, keep in mind that my information might be outdated as my training data goes up to that time, and I do not have browsing capabilities to check for the most current information. Please verify with up-to-date sources." conciseness_score = farsight.conciseness_score(query, output) print("score: ", conciseness_score) # score: 3 ```