% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/provider-github.R
\name{chat_github}
\alias{chat_github}
\alias{models_github}
\title{Chat with a model hosted on the GitHub model marketplace}
\usage{
chat_github(
  system_prompt = NULL,
  base_url = "https://models.github.ai/inference/",
  api_key = NULL,
  credentials = NULL,
  model = NULL,
  params = NULL,
  api_args = list(),
  echo = NULL,
  api_headers = character()
)

models_github(
  base_url = "https://models.github.ai/",
  api_key = NULL,
  credentials = NULL
)
}
\arguments{
\item{system_prompt}{A system prompt to set the behavior of the assistant.}

\item{base_url}{The base URL to the API endpoint.}

\item{api_key}{\ifelse{html}{\href{https://lifecycle.r-lib.org/articles/stages.html#deprecated}{\figure{lifecycle-deprecated.svg}{options: alt='[Deprecated]'}}}{\strong{[Deprecated]}} Use \code{credentials} instead.}

\item{credentials}{Override the default credentials. You generally should not need this argument; instead set the \code{GITHUB_PAT} environment variable. The best place to set this is in \code{.Renviron},
which you can easily edit by calling \code{usethis::edit_r_environ()}.

If you do need additional control, this argument takes a zero-argument function that returns either a string (the API key), or a named list (added as additional headers to every request).}

\item{model}{The model to use for the chat (defaults to "gpt-5").
We regularly update the default, so we strongly recommend explicitly specifying a model for anything other than casual use.}

\item{params}{Common model parameters, usually created by \code{\link[=params]{params()}}.}

\item{api_args}{Named list of arbitrary extra arguments appended to the body
of every chat API call. Combined with the body object generated by ellmer
with \code{\link[=modifyList]{modifyList()}}.}

\item{echo}{One of the following options:
\itemize{
\item \code{none}: don't emit any output (default when running in a function).
\item \code{output}: echo text and tool-calling output as it streams in (default
when running at the console).
\item \code{all}: echo all input and output.
}

Note this only affects the \code{chat()} method.}

\item{api_headers}{Named character vector of arbitrary extra headers appended
to every chat API call.}
}
\value{
A \link{Chat} object.
}
\description{
\ifelse{html}{\href{https://lifecycle.r-lib.org/articles/stages.html#deprecated}{\figure{lifecycle-deprecated.svg}{options: alt='[Deprecated]'}}}{\strong{[Deprecated]}}

\code{chat_github()} and \code{models_github()} are defunct because GitHub Models
was retired on 2026-07-30.
}
\examples{
\dontrun{
chat <- chat_github()
chat$chat("Tell me three jokes about statisticians")
}
}
\seealso{
Other chatbots:
\code{\link[=chat_anthropic]{chat_anthropic()}},
\code{\link[=chat_aws_bedrock]{chat_aws_bedrock()}},
\code{\link[=chat_azure_openai]{chat_azure_openai()}},
\code{\link[=chat_cloudflare]{chat_cloudflare()}},
\code{\link[=chat_databricks]{chat_databricks()}},
\code{\link[=chat_deepseek]{chat_deepseek()}},
\code{\link[=chat_google_gemini]{chat_google_gemini()}},
\code{\link[=chat_groq]{chat_groq()}},
\code{\link[=chat_huggingface]{chat_huggingface()}},
\code{\link[=chat_lmstudio]{chat_lmstudio()}},
\code{\link[=chat_mistral]{chat_mistral()}},
\code{\link[=chat_ollama]{chat_ollama()}},
\code{\link[=chat_openai]{chat_openai()}},
\code{\link[=chat_openai_compatible]{chat_openai_compatible()}},
\code{\link[=chat_openrouter]{chat_openrouter()}},
\code{\link[=chat_perplexity]{chat_perplexity()}},
\code{\link[=chat_portkey]{chat_portkey()}},
\code{\link[=chat_posit]{chat_posit()}}
}
\concept{chatbots}
