Gemini

Get a Gemini API key

Usage

.env

GEMINI_API_KEY=

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: 'gemini',
    model: 'gemini-1.5-pro',
    // 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
gemini-2.0-flash-001	✅	✅	✅	✅	✅	✅
gemini-2.0-flash-lite-preview-02-05	✅	✅	✅	✅	➖	✅
gemini-1.5-pro	✅	✅	✅	✅	✅	✅
gemini-1.5-flash	✅	✅	✅	✅	✅	✅
gemini-1.5-flash-8b	✅	✅	✅	✅	✅	✅
gemini-1.0-pro	✅	✅	➖	➖	✅	✅

Legend

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

Additional Resources

• Gemini Documentation