Gemini 4 Argon

// OpenRouter speaks the OpenAI Chat Completions format.
const res = await fetch("https://openrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OPENROUTER_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "google/gemini-4-argon",
    "messages": [
      {
        "role": "user",
        "content": [
          {
            "type": "text",
            "text": "This screenshot shows our checkout error. What is the user seeing, and what is the most likely cause in a React app?"
          },
          {
            "type": "image_url",
            "image_url": {
              "url": "https://example.com/checkout-error.png"
            }
          }
        ]
      }
    ],
    "reasoning": {
      "effort": "high"
    }
  }),
});
const data = await res.json();
console.log(data.choices[0].message.content);