Gemini Flash 2.0 not working with images

[astral lagoon]

Gemini Flash 2.0 hangs (no output is given. No error is given. No crash is given. Nothing at all) whenever an image (whether its an image link or base64) is presented to the model. This doesn't happen if only text is given.

Code:

const api = "ADD KEY HERE"

async function chat(messages, config) {
    const request = await fetch(
        "https://openrouter.ai/api/v1/chat/completions",
        {
            method: "POST",
            headers: {
                Authorization: `Bearer ${api}`,
                "Content-Type": "application/json"
            },
            body: JSON.stringify({ messages, ...config })
        }
    );
    const response = await request.json();
    if ("error" in response) {
        return {
            success: false,
            errorCode: response.error.status,
            errorMessage: response.error.message,
            metadata: response.error.metadata
        };
    }
    return { success: true, data: response };
}

async function main() {
    console.log(await chat([
        {
            role: "user",
            content: {
                type: "image_url",
                "image_url": "https://yt3.ggpht.com/Y6jut5A-dhWRlv7W81kGxVFPtZGjZN97IhBP75uLnx2AVV7ZEJUUUxBKHlFw9GcwILxkz1E_cLc=s48-c-k-c0x00ffffff-no-rj"
            }
        },
        {
            role: "user",
            content: "Whats shown in the image? Describe the image in great detail."
        }
    ], { model: "google/gemini-2.0-flash-001" }))
}

main()

[astral lagoon]

@lavish spear do you have any ideas?

[lavish spear]

Hey, sorry for getting back to you late. I'll see if I can reproduce

Yeah, this seems janky. Don't necessarily think it's an OpenRouter issue, but we'll see if I can dig into it.

[lavish spear]

Escalated this up to the team since it looks like this is working in Google's AI studio. It might just be something on our end, but it might take a bit to get resolved.

[astral lagoon]

How long do you think it'll take to have someone look into it?

[lavish spear]

Hey, we’ve been investigating on and off today, since this was not reproducible on our chatroom etc - looks like your code had an invalid payload

text + image -> text should be using multipart content, with content being an array

[astral lagoon]

Do you have a code/message example I could drop in right now to test again?

[astral lagoon]

what do you mean by this?

[lavish spear]

“messages": [
{
"role": "user",
"content": [
{
"type": "text",
"text": "What's in this image?"
},
{
"type": "image_url",
"image_url": {
"url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
}
}
]
}
]

[astral lagoon]

This works for me.