Extract and process information directly from PDF using Claude and Gemini

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"type": "n8n-nodes-base.httpRequest", "position": [880, -140], "parameters": {"url": "https://api.anthropic.com/v1/messages", "method": "POST", "options": {}, "jsonBody": "={\n \"model\": \"claude-3-5-sonnet-20241022\",\n \"max_tokens\": 1024,\n \"messages\": [{\n \"role\": \"user\",\n \"content\": [{\n \"type\": \"document\",\n \"source\": {\n \"type\": \"base64\",\n \"media_type\": \"application/pdf\",\n \"data\": \"{{$json.data}}\"\n }\n },\n {\n \"type\": \"text\",\n \"text\": \"{{ $('Define Prompt').item.json.prompt }}\"\n }]\n }]\n}", "sendBody": true, "sendHeaders": true, "specifyBody": "json", "authentication": "predefinedCredentialType", "headerParameters": {"parameters": [{"name": "anthropic-version", "value": "2023-06-01"}, {"name": "content-type", "value": "application/json"}]}, "nodeCredentialType": "anthropicApi"}, "credentials": {"anthropicApi": {"id": "", "name": "[Your anthropicApi]"}}, "typeVersion": 4.2}, {"id": "5b8994d1-4bfd-4776-84ac-b3141aca6378", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [-700, -280], "parameters": {"color": 7, "width": 601, "height": 585, "content": "## Workflow: Extract data from PDF with Claude 3.5 Sonnet or Gemini 2.0 Flash\n\n**Overview**\n- This workflow helps you compare Claude 3.5 Sonnet and Gemini 2.0 Flash when extracting data from a PDF\n- This workflow extracts and processes the data within a PDF in **one single step**, **instead of calling an OCR and then an LLM\u201d**\n\n\n**How it works**\n- The initial 2 steps download the PDF and convert it to base64.\n- This base64 string is then sent to both Claude 3.5 Sonnet and Gemini 2.0 Flash to extract information.\n- This workflow is made to let you compare results, latency, and cost (in their dedicated dashboard).\n\n\n**How to use it**\n- Set up your Google Drive if not already done\n- Select a document on your Google Drive\n- Modify the prompt in \"Define Prompt\" to extract the information you need and transform it as wanted.\n- Get a [Claude API key](https://console.anthropic.com/settings/keys) and/or [Gemini API key](https://aistudio.google.com/app/apikey)\n- Note that you can deactivate one of the 2 API calls if you don't want to try both\n- Test the Workflow\n"}, "typeVersion": 1}, {"id": "616241a9-6199-406b-88dc-0afc7d974250", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [820, 60], "parameters": {"color": 5, "width": 320, "height": 360, "content": "You can output the result as JSON by adding the following:\n```\n\"generationConfig\": {\n \"responseMimeType\": \"application/json\"\n```\nor even use a structured output.\n[Check the documentation](https://ai.google.dev/gemini-api/docs/structured-output?lang=rest)"}, "typeVersion": 1}, {"id": "bbac8d3d-d68f-4aa2-a41a-b06f7de2317b", "name": "Define Prompt", "type": "n8n-nodes-base.set", "position": [180, 0], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "dba23ef5-95df-496a-8e24-c7c1544533d2", "name": "prompt", "type": "string", "value": "Extract the VAT numbers for each country"}]}}, "typeVersion": 3.4}, {"id": "3c2e7265-76e5-4911-a950-7e6b0c89ec5a", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [820, -200], "parameters": {"color": 5, "width": 320, "height": 240, "content": "You can force Claude to output JSON with [Prefill response format](https://docs.anthropic.com/en/docs/test-and-evaluate/strengthen-guardrails/increase-consistency#prefill-claudes-response)"}, "typeVersion": 1}, {"id": "f2b46305-5200-486e-ad4d-ecc0d2a14314", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [380, -120], "parameters": {"color": 5, "width": 380, "height": 280, "content": "These 2 steps first download the PDF file, and then convert it to base64.\nThis is required by both APIs to process the file."}, "typeVersion": 1}, {"id": "e5dff70f-b55a-4c23-9025-765a7cf19c4a", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [120, -120], "parameters": {"color": 5, "width": 220, "height": 280, "content": "This prompt is used in both Gemini\u2019s and Claude\u2019s calls to define what information should be extracted and processed."}, "typeVersion": 1}], "pinData": {}, "connections": {"Google Drive": {"main": [[{"node": "Extract from File", "type": "main", "index": 0}]]}, "Define Prompt": {"main": [[{"node": "Google Drive", "type": "main", "index": 0}]]}, "Extract from File": {"main": [[{"node": "Call Claude 3.5 Sonnet with PDF Capabilities", "type": "main", "index": 0}, {"node": "Call Gemini 2.0 Flash with PDF Capabilities", "type": "main", "index": 0}]]}, "When clicking 'Test workflow'": {"main": [[{"node": "Define Prompt", "type": "main", "index": 0}]]}}}