Gemma 3n E4B IT

Google

google/gemma-3n-e4b-itOpen Weights

Efficient on-device Gemma 3n model for text, image, and audio understanding

Benchmark Pricing$0.00 / 1M in$0.00 / 1M out

Context: 32,768 tokens•Max Output: 32,768 tokens•Knowledge: 2024-06•Released: 2025-06-26

TECHNICAL SPECIFICATIONS

Context Window32,76832.8K tokens

Max Output32,76832.8K tokens

LicenseGemma Terms of UseSelf-hostable

Input Modalities

TextVisionAudio

Function / Tool CallingNot Supported

Structured OutputsPrompt Based

MODEL CONTEXT PROTOCOL (MCP) READINESS

⚠ Gemma 3n E4B IT does not natively advertise tool-calling capabilities. When connecting to MCP servers, function calling must be handled via structured prompt injection.

MCP Context Window Recommendations

With a context capacity of 32,768 tokens, this model can handle compact tool sets. Consider keeping MCP server tool manifests minimal to preserve headroom.

API CALL INVOCATION EXAMPLE

// Example: Calling Gemma 3n E4B IT via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.GOOGLE_API_KEY,
});

const response = await client.chat.completions.create({
  model: "google/gemma-3n-e4b-it",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

console.log(response.choices[0].message.content);