Sign up at https://www.perplexity.ai.
Perplexity AI is a platform for running LLMs that are capable of searching the web in real-time to help them answer questions with information that may not have been available when the model was trained.
This function is a lightweight wrapper around chat_openai() with
the defaults tweaked for Perplexity AI.
Usage
chat_perplexity(
system_prompt = NULL,
turns = NULL,
base_url = "https://api.perplexity.ai/",
api_key = perplexity_key(),
model = NULL,
seed = NULL,
api_args = list(),
echo = NULL
)Arguments
- system_prompt
A system prompt to set the behavior of the assistant.
- turns
A list of Turns to start the chat with (i.e., continuing a previous conversation). If not provided, the conversation begins from scratch.
- base_url
The base URL to the endpoint; the default uses OpenAI.
- api_key
The API key to use for authentication. You generally should not supply this directly, but instead set the
PERPLEXITY_API_KEYenvironment variable.- model
The model to use for the chat. The default,
NULL, will pick a reasonable default, and tell you about. We strongly recommend explicitly choosing a model for all but the most casual use.- seed
Optional integer seed that ChatGPT uses to try and make output more reproducible.
- api_args
Named list of arbitrary extra arguments appended to the body of every chat API call.
- echo
One of the following options:
none: don't emit any output (default when running in a function).text: echo text output as it streams in (default when running at the console).all: echo all input and output.
Note this only affects the
chat()method.
Value
A Chat object.
See also
Other chatbots:
chat_bedrock(),
chat_claude(),
chat_cortex_analyst(),
chat_databricks(),
chat_deepseek(),
chat_gemini(),
chat_github(),
chat_groq(),
chat_ollama(),
chat_openai(),
chat_openrouter()