Workflow: Form Automation

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        "templateCredsSetupCompleted": true
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    "name": "Image to license plate number",
    "tags": [],
    "nodes": [
        {
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            "name": "Basic LLM Chain",
            "type": "@n8n\/n8n-nodes-langchain.chainLlm",
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            ],
            "parameters": {
                "text": "={{ $json.prompt }}",
                "messages": {
                    "messageValues": [
                        {
                            "type": "HumanMessagePromptTemplate",
                            "messageType": "imageBinary",
                            "binaryImageDataKey": "Image"
                        }
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            "name": "OpenRouter LLM",
            "type": "@n8n\/n8n-nodes-langchain.lmChatOpenRouter",
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            ],
            "parameters": {
                "model": "={{ $json.model }}",
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            },
            "credentials": {
                "openRouterApi": {
                    "id": "bs7tPtvgDTJNGAFJ",
                    "name": "OpenRouter account"
                }
            },
            "typeVersion": 1
        },
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            "name": "Settings",
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                "assignments": {
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                            "name": "model",
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            "type": "n8n-nodes-base.formTrigger",
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            "webhookId": "41e3f34b-7abe-4c64-95cd-2942503d5e98",
            "parameters": {
                "options": [],
                "formTitle": "Analyse image",
                "formFields": {
                    "values": [
                        {
                            "fieldType": "file",
                            "fieldLabel": "Image",
                            "requiredField": true,
                            "acceptFileTypes": ".jpg, .png"
                        }
                    ]
                },
                "responseMode": "lastNode",
                "formDescription": "To analyse an image, upload it here."
            },
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    "pinData": [],
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    "connections": {
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                        "node": "Basic LLM Chain",
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                        "node": "Settings",
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        },
        "OpenRouter LLM": {
            "ai_languageModel": [
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                        "node": "Basic LLM Chain",
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