The openai function configures OpenAI as your model provider. 
import { createAgent, openai } from "@inngest/agent-kit";

const agent = createAgent({
  name: "Code writer",
  system: "You are an expert TypeScript programmer.",
  model: openai({ model: "gpt-4" }),
});

​
Configuration

The openai function accepts a model name string or a configuration object: 
const agent = createAgent({
  model: openai({
    model: "gpt-4",
    apiKey: process.env.OPENAI_API_KEY,
    baseUrl: "https://api.openai.com/v1/",
    defaultParameters: { temperature: 0.5 },
  }),
});

​
Options

​
model
string
required
ID of the model to use. See the model endpoint compatibility table for details on which models work with the Chat API.
​
apiKey
string
The OpenAI API key to use for authenticating your request. By default we’ll search for and use the OPENAI_API_KEY environment variable.
​
baseUrl
string
default:"https://api.openai.com/v1/"
The base URL for the OpenAI API.
​
defaultParameters
object
The default parameters to use for the model (ex: temperature, max_tokens, etc).

​
Available Models

OpenAI
"gpt-4o"
"chatgpt-4o-latest"
"gpt-4o-mini"
"gpt-4"
"o1-preview"
"o1-mini"
"gpt-3.5-turbo"