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OpenAI

Get an OpenAI API key

Usage

{% code title=".env" %}

OPENAI_API_KEY=

{% endcode %}

import { TokenJS } from 'token.js'

// Create the Token.js client
const tokenjs = new TokenJS()

async function main() {
  // Create a model response
  const completion = await tokenjs.chat.completions.create({
    // Specify the provider and model
    provider: 'openai',
    model: 'gpt-4o',
    // Define your message
    messages: [
      {
        role: 'user',
        content: 'Hello!',
      },
    ],
  })
  console.log(completion.choices[0])
}
main()

Supported Models

Model Chat Completion Streaming JSON Output Image Input Function Calling N > 1
gpt-4.5-preview ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.5-preview-2025-02-27 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1-2025-04-14 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1-mini ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1-mini-2025-04-14 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1-nano ✅ ✅ ✅ ✅ ✅ ✅
gpt-4.1-nano-2025-04-14 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4o ✅ ✅ ✅ ✅ ✅ ✅
gpt-4o-mini ✅ ✅ ✅ ✅ ✅ ✅
gpt-4o-2024-05-13 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4o-2024-08-06 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-turbo ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-turbo-2024-04-09 ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-0125-preview ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-turbo-preview ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-1106-preview ✅ ✅ ✅ ✅ ✅ ✅
gpt-4-vision-preview ✅ ✅ ✅ ✅ ➖ ✅
gpt-4 ✅ ✅ ➖ ➖ ✅ ✅
gpt-4-0314 ✅ ✅ ➖ ➖ ➖ ✅
gpt-4-0613 ✅ ✅ ➖ ➖ ✅ ✅
gpt-4-32k ✅ ✅ ➖ ➖ ➖ ✅
gpt-4-32k-0314 ✅ ✅ ➖ ➖ ➖ ✅
gpt-4-32k-0613 ✅ ✅ ➖ ➖ ➖ ✅
gpt-3.5-turbo ✅ ✅ ✅ ➖ ✅ ✅
gpt-3.5-turbo-16k ✅ ✅ ➖ ➖ ➖ ✅
gpt-3.5-turbo-0301 ✅ ✅ ➖ ➖ ➖ ✅
gpt-3.5-turbo-0613 ✅ ✅ ➖ ➖ ✅ ✅
gpt-3.5-turbo-1106 ✅ ✅ ✅ ➖ ✅ ✅
gpt-3.5-turbo-0125 ✅ ✅ ✅ ➖ ✅ ✅
gpt-3.5-turbo-16k-0613 ✅ ✅ ➖ ➖ ➖ ✅
o3-mini ✅ ✅ ✅ ➖ ✅ ✅
o1-mini ✅ ➖ ➖ ➖ ➖ ✅
o1-mini-2024-09-12 ✅ ➖ ➖ ➖ ➖ ✅
o1-preview ✅ ➖ ➖ ➖ ➖ ✅
o1-preview-2024-09-12 ✅ ➖ ➖ ➖ ➖ ✅

Legend

Symbol Description
✅ Supported by Token.js
➖ Not supported by the LLM provider, so Token.js cannot support it

Additional Resources