Image generation (text-to-image)

• Generated by Nano Banana Pro
  Prompt: "Present a clear, 45° top-down isometric miniature 3D cartoon scene of London, featuring its most iconic landmarks and architectural elements. Use soft, refined textures with realistic PBR materials and gentle, lifelike lighting and shadows. Integrate the current weather conditions directly into the city environment to create an immersive atmospheric mood. Use a clean, minimalistic composition with a soft, solid-colored background. At the top-center, place the title "London" in large bold text, a prominent weather icon beneath it, then the date (small text) and temperature (medium text). All text must be centered with consistent spacing, and may subtly overlap the tops of the buildings."
  Learn more about search grounding and try it in AI Studio
• Generated by Nano Banana Pro
  Prompt: "Put this logo on a high-end ad for a banana scented perfume. The logo is perfectly integrated into the bottle."
  Try Nano Banana's high fidelity detail preservation in AI Studio
• Generated by Nano Banana Pro
  Prompt: "Faithfully restore this image with high fidelity to modern photograph quality, in full color, upscale to 4K"
  Generate images in up to 4K resolution. Try Nano Banana AI Studio
• Generated by Nano Banana Pro
  Prompt: "A photo of a glossy magazine cover, the cover has the large bold words "Nano Banana Pro". The text is in a serif font and fills the view. No other text. In front of the text there is a portrait of a person in a beautiful outfit. Put the issue number and today's date in the corner along with a barcode and a price. The magazine is on a shelf against a brick wall, within a designer store. A mannequin is wearing the same outfit."
  Create professional product shots in AI Studio
• Generated by Nano Banana Pro
  Prompt: "Use search to find how the Gemini 3 Flash launch has been received. Use this information to write a short article about it (with headings). Return a photo of the article as it appeared in a design focused glossy magazine. It is a photo of a single folded over page, showing the article about Gemini 3 Flash. One hero photo. Headline in serif."
  Generate accurate text from search. Try Nano Banana in AI Studio
• Generated by Nano Banana Pro
  Prompt: "A photo of an everyday scene at a busy cafe serving breakfast. In the foreground is an anime man with blue hair, one of the people is a pencil sketch, another is a claymation person"
  Experiment with different artistic styles with Nano Banana in AI Studio
• Generated by Nano Banana Pro
  Prompt: "An icon representing a cute dog. The background is white. Make the icons in a colorful and tactile 3D style. No text."
  Create icons, stickers, and assets with Nano Banana in AI Studio
• Generated by Nano Banana Pro
  Prompt: "Make a photo that is perfectly isometric. It is not a miniature, it is a captured photo that just happened to be perfectly isometric. It is a photo of a beautiful modern office interior."
  Try photorealistic image generation in AI Studio

Nano Banana is the name for Gemini's native image generation capabilities. Gemini can generate and process images conversationally with text, images, or a combination of both. This lets you create, edit, and iterate on visuals with unprecedented control.

Nano Banana refers to two distinct models available in the Gemini API:

• Nano Banana : The Gemini 2.5 Flash Image model (gemini-2.5-flash-image). This model is designed for speed and efficiency, optimized for high-volume, low-latency tasks.
• Nano Banana Pro : The Gemini 3 Pro Image Preview model (gemini-3-pro-image-preview). This model is designed for professional asset production, utilizing advanced reasoning ("Thinking") to follow complex instructions and render high-fidelity text.

All generated images include a SynthID watermark.

Image generation (text-to-image)

Python

from google import genai
from google.genai import types
from PIL import Image

client = genai.Client()

prompt = ("Create a picture of a nano banana dish in a fancy restaurant with a Gemini theme")
response = client.models.generate_content(
    model="gemini-2.5-flash-image",
    contents=[prompt],
)

for part in response.parts:
    if part.text is not None:
        print(part.text)
    elif part.inline_data is not None:
        image = part.as_image()
        image.save("generated_image.png")

JavaScript

import { GoogleGenAI } from "@google/genai";
import * as fs from "node:fs";

async function main() {

  const ai = new GoogleGenAI({});

  const prompt =
    "Create a picture of a nano banana dish in a fancy restaurant with a Gemini theme";

  const response = await ai.models.generateContent({
    model: "gemini-2.5-flash-image",
    contents: prompt,
  });
  for (const part of response.candidates[0].content.parts) {
    if (part.text) {
      console.log(part.text);
    } else if (part.inlineData) {
      const imageData = part.inlineData.data;
      const buffer = Buffer.from(imageData, "base64");
      fs.writeFileSync("gemini-native-image.png", buffer);
      console.log("Image saved as gemini-native-image.png");
    }
  }
}

main();

Go

package main

import (
  "context"
  "fmt"
  "log"
  "os"
  "google.golang.org/genai"
)

func main() {

  ctx := context.Background()
  client, err := genai.NewClient(ctx, nil)
  if err != nil {
      log.Fatal(err)
  }

  result, _ := client.Models.GenerateContent(
      ctx,
      "gemini-2.5-flash-image",
      genai.Text("Create a picture of a nano banana dish in a " +
                 " fancy restaurant with a Gemini theme"),
  )

  for _, part := range result.Candidates[0].Content.Parts {
      if part.Text != "" {
          fmt.Println(part.Text)
      } else if part.InlineData != nil {
          imageBytes := part.InlineData.Data
          outputFilename := "gemini_generated_image.png"
          _ = os.WriteFile(outputFilename, imageBytes, 0644)
      }
  }
}

Java

import com.google.genai.Client;
import com.google.genai.types.GenerateContentConfig;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.Part;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class TextToImage {
  public static void main(String[] args) throws IOException {

    try (Client client = new Client()) {
      GenerateContentConfig config = GenerateContentConfig.builder()
          .responseModalities("TEXT", "IMAGE")
          .build();

      GenerateContentResponse response = client.models.generateContent(
          "gemini-2.5-flash-image",
          "Create a picture of a nano banana dish in a fancy restaurant with a Gemini theme",
          config);

      for (Part part : response.parts()) {
        if (part.text().isPresent()) {
          System.out.println(part.text().get());
        } else if (part.inlineData().isPresent()) {
          var blob = part.inlineData().get();
          if (blob.data().isPresent()) {
            Files.write(Paths.get("_01_generated_image.png"), blob.data().get());
          }
        }
      }
    }
  }
}

REST

curl -s -X POST \
  "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-image:generateContent" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [{
      "parts": [
        {"text": "Create a picture of a nano banana dish in a fancy restaurant with a Gemini theme"}
      ]
    }]
  }'

Image editing (text-and-image-to-image)

Reminder : Make sure you have the necessary rights to any images you upload. Don't generate content that infringe on others' rights, including videos or images that deceive, harass, or harm. Your use of this generative AI service is subject to our Prohibited Use Policy.

Provide an image and use text prompts to add, remove, or modify elements, change the style, or adjust the color grading.

The following example demonstrates uploading base64 encoded images. For multiple images, larger payloads, and supported MIME types, check the Image understanding page.

Python

from google import genai
from google.genai import types
from PIL import Image

client = genai.Client()

prompt = (
    "Create a picture of my cat eating a nano-banana in a "
    "fancy restaurant under the Gemini constellation",
)

image = Image.open("/path/to/cat_image.png")

response = client.models.generate_content(
    model="gemini-2.5-flash-image",
    contents=[prompt, image],
)

for part in response.parts:
    if part.text is not None:
        print(part.text)
    elif part.inline_data is not None:
        image = part.as_image()
        image.save("generated_image.png")

JavaScript

import { GoogleGenAI } from "@google/genai";
import * as fs from "node:fs";

async function main() {

  const ai = new GoogleGenAI({});

  const imagePath = "path/to/cat_image.png";
  const imageData = fs.readFileSync(imagePath);
  const base64Image = imageData.toString("base64");

  const prompt = [
    { text: "Create a picture of my cat eating a nano-banana in a" +
            "fancy restaurant under the Gemini constellation" },
    {
      inlineData: {
        mimeType: "image/png",
        data: base64Image,
      },
    },
  ];

  const response = await ai.models.generateContent({
    model: "gemini-2.5-flash-image",
    contents: prompt,
  });
  for (const part of response.candidates[0].content.parts) {
    if (part.text) {
      console.log(part.text);
    } else if (part.inlineData) {
      const imageData = part.inlineData.data;
      const buffer = Buffer.from(imageData, "base64");
      fs.writeFileSync("gemini-native-image.png", buffer);
      console.log("Image saved as gemini-native-image.png");
    }
  }
}

main();

Go

package main

import (
 "context"
 "fmt"
 "log"
 "os"
 "google.golang.org/genai"
)

func main() {

 ctx := context.Background()
 client, err := genai.NewClient(ctx, nil)
 if err != nil {
     log.Fatal(err)
 }

 imagePath := "/path/to/cat_image.png"
 imgData, _ := os.ReadFile(imagePath)

 parts := []*genai.Part{
   genai.NewPartFromText("Create a picture of my cat eating a nano-banana in a fancy restaurant under the Gemini constellation"),
   &genai.Part{
     InlineData: &genai.Blob{
       MIMEType: "image/png",
       Data:     imgData,
     },
   },
 }

 contents := []*genai.Content{
   genai.NewContentFromParts(parts, genai.RoleUser),
 }

 result, _ := client.Models.GenerateContent(
     ctx,
     "gemini-2.5-flash-image",
     contents,
 )

 for _, part := range result.Candidates[0].Content.Parts {
     if part.Text != "" {
         fmt.Println(part.Text)
     } else if part.InlineData != nil {
         imageBytes := part.InlineData.Data
         outputFilename := "gemini_generated_image.png"
         _ = os.WriteFile(outputFilename, imageBytes, 0644)
     }
 }
}

Java

import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentConfig;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.Part;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class TextAndImageToImage {
  public static void main(String[] args) throws IOException {

    try (Client client = new Client()) {
      GenerateContentConfig config = GenerateContentConfig.builder()
          .responseModalities("TEXT", "IMAGE")
          .build();

      GenerateContentResponse response = client.models.generateContent(
          "gemini-2.5-flash-image",
          Content.fromParts(
              Part.fromText("""
                  Create a picture of my cat eating a nano-banana in
                  a fancy restaurant under the Gemini constellation
                  """),
              Part.fromBytes(
                  Files.readAllBytes(
                      Path.of("src/main/resources/cat.jpg")),
                  "image/jpeg")),
          config);

      for (Part part : response.parts()) {
        if (part.text().isPresent()) {
          System.out.println(part.text().get());
        } else if (part.inlineData().isPresent()) {
          var blob = part.inlineData().get();
          if (blob.data().isPresent()) {
            Files.write(Paths.get("gemini_generated_image.png"), blob.data().get());
          }
        }
      }
    }
  }
}

REST

curl -s -X POST \
  "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-image:generateContent" \
    -H "x-goog-api-key: $GEMINI_API_KEY" \
    -H 'Content-Type: application/json' \
    -d "{
      \"contents\": [{
        \"parts\":[
            {\"text\": \"'Create a picture of my cat eating a nano-banana in a fancy restaurant under the Gemini constellation\"},
            {
              \"inline_data\": {
                \"mime_type\":\"image/jpeg\",
                \"data\": \"<BASE64_IMAGE_DATA>\"
              }
            }
        ]
      }]
    }"

Multi-turn image editing

Keep generating and editing images conversationally. Chat or multi-turn conversation is the recommended way to iterate on images. The following example shows a prompt to generate an infographic about photosynthesis.

Python

from google import genai
from google.genai import types

client = genai.Client()

chat = client.chats.create(
    model="gemini-3-pro-image-preview",
    config=types.GenerateContentConfig(
        response_modalities=['TEXT', 'IMAGE'],
        tools=[{"google_search": {}}]
    )
)

message = "Create a vibrant infographic that explains photosynthesis as if it were a recipe for a plant's favorite food. Show the \"ingredients\" (sunlight, water, CO2) and the \"finished dish\" (sugar/energy). The style should be like a page from a colorful kids' cookbook, suitable for a 4th grader."

response = chat.send_message(message)

for part in response.parts:
    if part.text is not None:
        print(part.text)
    elif image:= part.as_image():
        image.save("photosynthesis.png")

Javascript

import { GoogleGenAI } from "@google/genai";

const ai = new GoogleGenAI({});

async function main() {
  const chat = ai.chats.create({
    model: "gemini-3-pro-image-preview",
    config: {
      responseModalities: ['TEXT', 'IMAGE'],
      tools: [{googleSearch: {}}],
    },
  });

await main();

const message = "Create a vibrant infographic that explains photosynthesis as if it were a recipe for a plant's favorite food. Show the \"ingredients\" (sunlight, water, CO2) and the \"finished dish\" (sugar/energy). The style should be like a page from a colorful kids' cookbook, suitable for a 4th grader."

let response = await chat.sendMessage({message});

for (const part of response.candidates[0].content.parts) {
    if (part.text) {
      console.log(part.text);
    } else if (part.inlineData) {
      const imageData = part.inlineData.data;
      const buffer = Buffer.from(imageData, "base64");
      fs.writeFileSync("photosynthesis.png", buffer);
      console.log("Image saved as photosynthesis.png");
    }
}

Go

package main

import (
    "context"
    "fmt"
    "log"
    "os"

    "google.golang.org/genai"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, nil)
    if err != nil {
        log.Fatal(err)
    }
    defer client.Close()

    model := client.GenerativeModel("gemini-3-pro-image-preview")
    model.GenerationConfig = &pb.GenerationConfig{
        ResponseModalities: []pb.ResponseModality{genai.Text, genai.Image},
    }
    chat := model.StartChat()

    message := "Create a vibrant infographic that explains photosynthesis as if it were a recipe for a plant's favorite food. Show the \"ingredients\" (sunlight, water, CO2) and the \"finished dish\" (sugar/energy). The style should be like a page from a colorful kids' cookbook, suitable for a 4th grader."

    resp, err := chat.SendMessage(ctx, genai.Text(message))
    if err != nil {
        log.Fatal(err)
    }

    for _, part := range resp.Candidates[0].Content.Parts {
        if txt, ok := part.(genai.Text); ok {
            fmt.Printf("%s", string(txt))
        } else if img, ok := part.(genai.ImageData); ok {
            err := os.WriteFile("photosynthesis.png", img.Data, 0644)
            if err != nil {
                log.Fatal(err)
            }
        }
    }
}

Java

import com.google.genai.Chat;
import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentConfig;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.GoogleSearch;
import com.google.genai.types.ImageConfig;
import com.google.genai.types.Part;
import com.google.genai.types.RetrievalConfig;
import com.google.genai.types.Tool;
import com.google.genai.types.ToolConfig;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class MultiturnImageEditing {
  public static void main(String[] args) throws IOException {

    try (Client client = new Client()) {

      GenerateContentConfig config = GenerateContentConfig.builder()
          .responseModalities("TEXT", "IMAGE")
          .tools(Tool.builder()
              .googleSearch(GoogleSearch.builder().build())
              .build())
          .build();

      Chat chat = client.chats.create("gemini-3-pro-image-preview", config);

      GenerateContentResponse response = chat.sendMessage("""
          Create a vibrant infographic that explains photosynthesis
          as if it were a recipe for a plant's favorite food.
          Show the "ingredients" (sunlight, water, CO2)
          and the "finished dish" (sugar/energy).
          The style should be like a page from a colorful
          kids' cookbook, suitable for a 4th grader.
          """);

      for (Part part : response.parts()) {
        if (part.text().isPresent()) {
          System.out.println(part.text().get());
        } else if (part.inlineData().isPresent()) {
          var blob = part.inlineData().get();
          if (blob.data().isPresent()) {
            Files.write(Paths.get("photosynthesis.png"), blob.data().get());
          }
        }
      }
      // ...
    }
  }
}

REST

curl -s -X POST \
  "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-image-preview:generateContent" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [{
      "role": "user",
      "parts": [
        {"text": "Create a vibrant infographic that explains photosynthesis as if it were a recipe for a plants favorite food. Show the \"ingredients\" (sunlight, water, CO2) and the \"finished dish\" (sugar/energy). The style should be like a page from a colorful kids cookbook, suitable for a 4th grader."}
      ]
    }],
    "generationConfig": {
      "responseModalities": ["TEXT", "IMAGE"]
    }
  }'

AI-generated infographic about photosynthesis

You can then use the same chat to change the language on the graphic to Spanish.

Python

message = "Update this infographic to be in Spanish. Do not change any other elements of the image."
aspect_ratio = "16:9" # "1:1","2:3","3:2","3:4","4:3","4:5","5:4","9:16","16:9","21:9"
resolution = "2K" # "1K", "2K", "4K"

response = chat.send_message(message,
    config=types.GenerateContentConfig(
        image_config=types.ImageConfig(
            aspect_ratio=aspect_ratio,
            image_size=resolution
        ),
    ))

for part in response.parts:
    if part.text is not None:
        print(part.text)
    elif image:= part.as_image():
        image.save("photosynthesis_spanish.png")

Javascript

const message = 'Update this infographic to be in Spanish. Do not change any other elements of the image.';
const aspectRatio = '16:9';
const resolution = '2K';

let response = await chat.sendMessage({
  message,
  config: {
    responseModalities: ['TEXT', 'IMAGE'],
    imageConfig: {
      aspectRatio: aspectRatio,
      imageSize: resolution,
    },
    tools: [{googleSearch: {}}],
  },
});

for (const part of response.candidates[0].content.parts) {
    if (part.text) {
      console.log(part.text);
    } else if (part.inlineData) {
      const imageData = part.inlineData.data;
      const buffer = Buffer.from(imageData, "base64");
      fs.writeFileSync("photosynthesis2.png", buffer);
      console.log("Image saved as photosynthesis2.png");
    }
}

Go

message = "Update this infographic to be in Spanish. Do not change any other elements of the image."
aspect_ratio = "16:9" // "1:1","2:3","3:2","3:4","4:3","4:5","5:4","9:16","16:9","21:9"
resolution = "2K"     // "1K", "2K", "4K"

model.GenerationConfig.ImageConfig = &pb.ImageConfig{
    AspectRatio: aspect_ratio,
    ImageSize:   resolution,
}

resp, err = chat.SendMessage(ctx, genai.Text(message))
if err != nil {
    log.Fatal(err)
}

for _, part := range resp.Candidates[0].Content.Parts {
    if txt, ok := part.(genai.Text); ok {
        fmt.Printf("%s", string(txt))
    } else if img, ok := part.(genai.ImageData); ok {
        err := os.WriteFile("photosynthesis_spanish.png", img.Data, 0644)
        if err != nil {
            log.Fatal(err)
        }
    }
}

Java

String aspectRatio = "16:9"; // "1:1","2:3","3:2","3:4","4:3","4:5","5:4","9:16","16:9","21:9"
String resolution = "2K"; // "1K", "2K", "4K"

config = GenerateContentConfig.builder()
    .responseModalities("TEXT", "IMAGE")
    .imageConfig(ImageConfig.builder()
        .aspectRatio(aspectRatio)
        .imageSize(resolution)
        .build())
    .build();

response = chat.sendMessage(
    "Update this infographic to be in Spanish. " + 
    "Do not change any other elements of the image.",
    config);

for (Part part : response.parts()) {
  if (part.text().isPresent()) {
    System.out.println(part.text().get());
  } else if (part.inlineData().isPresent()) {
    var blob = part.inlineData().get();
    if (blob.data().isPresent()) {
      Files.write(Paths.get("photosynthesis_spanish.png"), blob.data().get());
    }
  }
}

REST

curl -s -X POST \
  "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-image-preview:generateContent" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [{"text": "Create a vibrant infographic that explains photosynthesis..."}]
      },
      {
        "role": "model",
        "parts": [{"inline_data": {"mime_type": "image/png", "data": "<PREVIOUS_IMAGE_DATA>"}}]
      },
      {
        "role": "user",
        "parts": [{"text": "Update this infographic to be in Spanish. Do not change any other elements of the image."}]
      }
    ],
    "tools": [{"google_search": {}}],
    "generationConfig": {
      "responseModalities": ["TEXT", "IMAGE"],
      "imageConfig": {
        "aspectRatio": "16:9",
        "imageSize": "2K"
      }
    }
  }'

AI-generated infographic of photosynthesis in Spanish

New with Gemini 3 Pro Image

Gemini 3 Pro Image (gemini-3-pro-image-preview) is a state-of-the-art image generation and editing model optimized for professional asset production. Designed to tackle the most challenging workflows through advanced reasoning, it excels at complex, multi-turn creation and modification tasks.

• High-resolution output: Built-in generation capabilities for 1K, 2K, and 4K visuals.
• Advanced text rendering: Capable of generating legible, stylized text for infographics, menus, diagrams, and marketing assets.
• Grounding with Google Search: The model can use Google Search as a tool to verify facts and generate imagery based on real-time data (e.g., current weather maps, stock charts, recent events).
• Thinking mode: The model utilizes a "thinking" process to reason through complex prompts. It generates interim "thought images" (visible in the backend but not charged) to refine the composition before producing the final high-quality output.
• Up to 14 reference images: You can now mix up to 14 reference images to produce the final image.

Use up to 14 reference images

Gemini 3 Pro Preview lets you to mix up to 14 reference images. These 14 images can include the following:

• Up to 6 images of objects with high-fidelity to include in the final image
• Up to 5 images of humans to maintain character consistency

Python

from google import genai
from google.genai import types
from PIL import Image

prompt = "An office group photo of these people, they are making funny faces."
aspect_ratio = "5:4" # "1:1","2:3","3:2","3:4","4:3","4:5","5:4","9:16","16:9","21:9"
resolution = "2K" # "1K", "2K", "4K"

client = genai.Client()

response = client.models.generate_content(
    model="gemini-3-pro-image-preview",
    contents=[
        prompt,
        Image.open('person1.png'),
        Image.open('person2.png'),
        Image.open('person3.png'),
        Image.open('person4.png'),
        Image.open('person5.png'),
    ],
    config=types.GenerateContentConfig(
        response_modalities=['TEXT', 'IMAGE'],
        image_config=types.ImageConfig(
            aspect_ratio=aspect_ratio,
            image_size=resolution
        ),
    )
)

for part in response.parts:
    if part.text is not None:
        print(part.text)
    elif image:= part.as_image():
        image.save("office.png")

Javascript

import { GoogleGenAI } from "@google/genai";
import * as fs from "node:fs";

async function main() {

  const ai = new GoogleGenAI({});

  const prompt =
      'An office group photo of these people, they are making funny faces.';
  const aspectRatio = '5:4';
  const resolution = '2K';

const contents = [
  { text: prompt },
  {
    inlineData: {
      mimeType: "image/jpeg",
      data: base64ImageFile1,
    },
  },
  {
    inlineData: {
      mimeType: "image/jpeg",
      data: base64ImageFile2,
    },
  },
  {
    inlineData: {
      mimeType: "image/jpeg",
      data: base64ImageFile3,
    },
  },
  {
    inlineData: {
      mimeType: "image/jpeg",
      data: base64ImageFile4,
    },
  },
  {
    inlineData: {
      mimeType: "image/jpeg",
      data: base64ImageFile5,
    },
  }
];

const response = await ai.models.generateContent({
    model: 'gemini-3-pro-image-preview',
    contents: contents,
    config: {
      responseModalities: ['TEXT', 'IMAGE'],
      imageConfig: {
        aspectRatio: aspectRatio,
        imageSize: resolution,
      },
    },
  });

  for (const part of response.candidates[0].content.parts) {
    if (part.text) {
      console.log(part.text);
    } else if (part.inlineData) {
      const imageData = part.inlineData.data;
      const buffer = Buffer.from(imageData, "base64");
      fs.writeFileSync("image.png", buffer);
      console.log("Image saved as image.png");
    }
  }

}

main();

Go

package main

import (
    "context"
    "fmt"
    "log"
    "os"

    "google.golang.org/genai"
)

func main() {
    ctx := context.Background()
    client, err := genai.NewClient(ctx, nil)
    if err != nil {
        log.Fatal(err)
    }
    defer client.Close()

    model := client.GenerativeModel("gemini-3-pro-image-preview")
    model.GenerationConfig = &pb.GenerationConfig{
        ResponseModalities: []pb.ResponseModality{genai.Text, genai.Image},
        ImageConfig: &pb.ImageConfig{
            AspectRatio: "5:4",
            ImageSize:   "2K",
        },
    }

    img1, err := os.ReadFile("person1.png")
    if err != nil { log.Fatal(err) }
    img2, err := os.ReadFile("person2.png")
    if err != nil { log.Fatal(err) }
    img3, err := os.ReadFile("person3.png")
    if err != nil { log.Fatal(err) }
    img4, err := os.ReadFile("person4.png")
    if err != nil { log.Fatal(err) }
    img5, err := os.ReadFile("person5.png")
    if err != nil { log.Fatal(err) }

    parts := []genai.Part{
        genai.Text("An office group photo of these people, they are making funny faces."),
        genai.ImageData{MIMEType: "image/png", Data: img1},
        genai.ImageData{MIMEType: "image/png", Data: img2},
        genai.ImageData{MIMEType: "image/png", Data: img3},
        genai.ImageData{MIMEType: "image/png", Data: img4},
        genai.ImageData{MIMEType: "image/png", Data: img5},
    }

    resp, err := model.GenerateContent(ctx, parts...)
    if err != nil {
        log.Fatal(err)
    }

    for _, part := range resp.Candidates[0].Content.Parts {
        if txt, ok := part.(genai.Text); ok {
            fmt.Printf("%s", string(txt))
        } else if img, ok := part.(genai.ImageData); ok {
            err := os.WriteFile("office.png", img.Data, 0644)
            if err != nil {
                log.Fatal(err)
            }
        }
    }
}

Java

import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentConfig;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.ImageConfig;
import com.google.genai.types.Part;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class GroupPhoto {
  public static void main(String[] args) throws IOException {

    try (Client client = new Client()) {
      GenerateContentConfig config = GenerateContentConfig.builder()
          .responseModalities("TEXT", "IMAGE")
          .imageConfig(ImageConfig.builder()
              .aspectRatio("5:4")
              .imageSize("2K")
              .build())
          .build();

      GenerateContentResponse response = client.models.generateContent(
          "gemini-3-pro-image-preview",
          Content.fromParts(
              Part.fromText("An office group photo of these people, they are making funny faces."),
              Part.fromBytes(Files.readAllBytes(Path.of("person1.png")), "image/png"),
              Part.fromBytes(Files.readAllBytes(Path.of("person2.png")), "image/png"),
              Part.fromBytes(Files.readAllBytes(Path.of("person3.png")), "image/png"),
              Part.fromBytes(Files.readAllBytes(Path.of("person4.png")), "image/png"),
              Part.fromBytes(Files.readAllBytes(Path.of("person5.png")), "image/png")
          ), config);

      for (Part part : response.parts()) {
        if (part.text().isPresent()) {
          System.out.println(part.text().get());
        } else if (part.inlineData().isPresent()) {
          var blob = part.inlineData().get();
          if (blob.data().isPresent()) {
            Files.write(Paths.get("office.png"), blob.data().get());
          }
        }
      }
    }
  }
}

REST

curl -s -X POST \
  "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-image-preview:generateContent" \
    -H "x-goog-api-key: $GEMINI_API_KEY" \
    -H 'Content-Type: application/json' \
    -d "{
      \"contents\": [{
        \"parts\":[
            {\"text\": \"An office group photo of these people, they are making funny faces.\"},
            {\"inline_data\": {\"mime_type\":\"image/png\", \"data\": \"<BASE64_DATA_IMG_1>\"}},
            {\"inline_data\": {\"mime_type\":\"image/png\", \"data\": \"<BASE64_DATA_IMG_2>\"}},
            {\"inline_data\": {\"mime_type\":\"image/png\", \"data\": \"<BASE64_DATA_IMG_3>\"}},
            {\"inline_data\": {\"mime_type\":\"image/png\", \"data\": \"<BASE64_DATA_IMG_4>\"}},
            {\"inline_data\": {\"mime_type\":\"image/png\", \"data\": \"<BASE64_DATA_IMG_5>\"}}
        ]
      }],
      \"generationConfig\": {
        \"responseModalities\": [\"TEXT\", \"IMAGE\"],
        \"imageConfig\": {
          \"aspectRatio\": \"5:4\",
          \"imageSize\": \"2K\"
        }
      }
    }"

AI-generated office group photo

Grounding with Google Search

Use the Google Search tool to generate images based on real-time information, such as weather forecasts, stock charts, or recent events.

Note that when using Grounding with Google Search with image generation, image-based search results are not passed to the generation model and are excluded from the response.

Python

from google import genai
prompt = "Visualize the current weather forecast for the next 5 days in San Francisco as a clean, modern weather chart. Add a visual on what I should wear each day"
aspect_ratio = "16:9" # "1:1","2:3","3:2","3:4","4:3","4:5","5:4","9:16","16:9","21:9"

client = genai.Client()

response = client.

…(truncated)