Chat with an Anthropic Claude model

Anthropic provides a number of chat based models under the Claude moniker.

Note that a Claude Prop membership does not give you the ability to call models via the API. You will need to go to the developer console to sign up (and pay for) a developer account that will give you an API key that you can use with this package.

Usage

chat_claude(
  system_prompt = NULL,
  turns = NULL,
  max_tokens = 4096,
  model = NULL,
  api_args = list(),
  base_url = "https://api.anthropic.com/v1",
  api_key = anthropic_key(),
  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. Do not provide non-NULL values for both turns and system_prompt.

Each message in the list should be a named list with at least role (usually system, user, or assistant, but tool is also possible). Normally there is also a content field, which is a string.

max_tokens

Maximum number of tokens to generate before stopping.

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.

api_args

Named list of arbitrary extra arguments appended to the body of every chat API call.

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 ANTHROPIC_API_KEY environment variable.

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.

Usage

Arguments

Value

See also