Gemini Nano Banana 2.1

curl --fail-with-body https://api.inworld.ai/v1/chat/completions \
  -H "Authorization: Basic $INWORLD_API_KEY" \
  -H 'Content-Type: application/json' \
  -o response.json \
  -d '{
    "model": "google-ai-studio/gemini-nano-banana-2.1",
    "messages": [{"role": "user", "content": "A blue circle on a white background."}],
    "modalities": ["image"]
  }'

import base64
import os
from pathlib import Path
import requests

response = requests.post(
    "https://api.inworld.ai/v1/chat/completions",
    headers={"Authorization": f"Basic {os.environ['INWORLD_API_KEY']}"},
    json={
        "model": "google-ai-studio/gemini-nano-banana-2.1",
        "messages": [{"role": "user", "content": "A blue circle on a white background."}],
        "modalities": ["image"],
    },
    timeout=120,
)
response.raise_for_status()
url = response.json()["choices"][0]["message"]["images"][0]["image_url"]["url"]
header, data = url.split(",", 1)
ext = "jpg" if header.startswith("data:image/jpeg") else "png"
path = Path(f"image.{ext}")
path.write_bytes(base64.b64decode(data))
print(f"Saved {path}")

import { writeFile } from "node:fs/promises";

const res = await fetch("https://api.inworld.ai/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Basic ${process.env.INWORLD_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "google-ai-studio/gemini-nano-banana-2.1",
    messages: [{ role: "user", content: "A blue circle on a white background." }],
    modalities: ["image"],
  }),
});
if (!res.ok) throw new Error(`HTTP ${res.status}`);
const { choices } = await res.json();
const url = choices[0].message.images[0].image_url.url;
const [header, data] = url.split(",", 2);
const ext = header.startsWith("data:image/jpeg") ? "jpg" : "png";
await writeFile(`image.${ext}`, Buffer.from(data, "base64"));
console.log(`Saved image.${ext}`);