How to Compare Two Images with OpenAI Analyze Image Node in n8n?

[Silvio_CACI]

Hello,

I’d like to compare two images using the OpenAI - Analyze Image node in n8n.
However, it looks like this node only allows uploading a single image (there’s just one field for the image).

Is there a way to upload two images so they can be compared directly within this node?
Or do I need to use another approach / node to handle the comparison?

Thanks in advance for your help!

[mohamed3nan]

Welcome to community @Silvio_CACI,

I think it’s possible to attach more than one image according on the node:

So, If you’re using the binary files approach, just separate the binary names with a comma:

here is a working example:

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If this solves your problem, feel free to mark the reply as the solution it’ll help others with same issue, and it also helps me on the leaderboard

[Silvio_CACI]

Hi thanks for your reply.

How to assemble the two binary files? data and data2 come from two different nodes (download file(data) and download file2(data2)). I only have access to data2, which comes from the last node, but not to data, which comes from a previous node.

Thanks

[mohamed3nan]

Hi @Silvio_CACI

In the Google Drive node, rename the outputs to “data1” and “data2”:

Then, before the OpenAI node, use the Merge node to combine the binaries into a single output item.

Here’s an example:

Please do not forget to mark the answer as the solution, thanks

[Silvio_CACI]

Hi Mohamed thanks for the help.

[mohamed3nan]

@Silvio_CACI You’re very welcome!
I’d really appreciate it if you could mark my reply as the solution.
Thanks so much!