Meta Ads Performance Analysis with GPT-4 & Gemini AI Comparisons
This workflow transforms raw Meta Ads data into actionable, expert-level insights. It acts as a virtual performance marketer, analyzing each creative's performance, comparing it against your historical benchmarks, and delivering clear recommendations on whether to scale, optimize, or stop the ad. By running parallel analyses with both OpenAI and Gemini, it provides a unique, dual-perspective evaluation. This template is the perfect sequel to our "Automation of Creative Testing" workflow but also works powerfully on its own.
Use Case
Manually sifting through ads manager reports is tedious, and identifying true winners from early data is challenging. This workflow solves these problems by automating the entire analysis pipeline. It's designed for performance marketing teams who need to:
- Make faster, data-driven decisions on which creatives to scale.
- Get objective, AI-powered second opinions on ad performance.
- Systematically evaluate creatives against consistent, pre-defined benchmarks.
- Maintain a central log in Google Sheets with both raw metrics and qualitative AI analysis.
- Save hours spent on manual data crunching and report generation.
How it Works
The workflow is structured into three logical stages:
- Configuration & Data Ingestion:
- A central ⚙️ Set parameters node holds all key variables: the data source (Meta or Sheets), campaign_id, and, most importantly, your historical performance benchmarks as a simple text block.
- An IF node directs the workflow to fetch data either directly from a Meta Ads campaign or from a specified Google Sheet (ideal for analyzing a curated list of ads).
- Data Processing & AI Analysis (Parallel Execution): After fetching raw performance data (spend, impressions, clicks, actions), the workflow splits into three parallel branches for maximum resilience:
- Branch 1 (Data Logging): Immediately writes or updates a row in Google Sheets with the raw metrics for the creative. This ensures no data is lost, even if the AI analysis fails.
- Branch 2 (OpenAI Analysis): Prepares a CSV string of the creative's data, sends it along with the benchmarks to an OpenAI model (e.g., GPT-4), and instructs it to return a structured JSON analysis.
- Branch 3 (Gemini Analysis): Performs the exact same process but using Google's Gemini model via a LangChain agent, providing a second, independent evaluation.
- Results Aggregation:
- The results from both AI models are received as structured JSON.
- Two final Google Sheets nodes take these results and update the original row (matching by AdID), adding the evaluation, significance, summary, and recommendation into separate columns. The final sheet contains a complete picture: raw data side-by-side with analyses from two different AIs.
Setup Instructions
- Credentials: 1.1 Connect your Meta Ads account. 1.2 Connect your Google account (for Sheets). 1.3 Connect your OpenAI account. 1.4 Connect your Google Gemini (Palm) account.
- The ⚙️ Set parameters Node: This is the central control panel. Open this first Set node and customize it:
- source: Set to "Meta" to pull from a campaign or "sheets" to read from a Google Sheet.
- campaign_id: If source is "Meta", enter your Meta Campaign ID here.
- benchmarks_data: This is critical. Paste your own historical performance data here as a CSV-formatted text block. The template includes an example. For best results, use an export from Ads Manager of your top-performing creatives, including key metrics.
- Google Sheets Nodes: There are three Google Sheets nodes that write data. You need to configure all of them to point to the same spreadsheet and sheet.
- Ad metrics (for raw metrics): Select your spreadsheet and sheet. Ensure "Operation" is set to Append or Update.
- Ad data from OpenAI (for OpenAI results): Select the same spreadsheet/sheet. Set "Operation" to Update.
- Ad data from Gemini (for Gemini results): Select the same spreadsheet/sheet. Set "Operation" to Update.
- Make sure your sheet has columns for all the data fields, e.g., AdID, FileName, spend, impressions, evaluation, summary, recommendation, evaluation G, summary G, etc.
- Activate the Workflow: Set your desired frequency in the Schedule Trigger node. Save and activate the workflow.
Further Ideas & Customization
This powerful analysis engine can be extended even further:
- Add a "Decision" Node: After the AI analyses are logged, add a final step that compares their recommendations. If both AIs say "scale", automatically increase the ad's budget via the Meta Ads API.
- Create Summary Reports: Add a branch that, after all ads are processed, calculates an overall summary (e.g., "3 creatives recommended for scaling, 5 for stopping") and sends it to a Slack channel.
- Dynamic Benchmarks: Instead of pasting benchmarks into the Set node, create a step that reads them from a dedicated "Benchmarks" tab in your Google Sheet, making them even easier to update.
- Experiment with Prompts and Benchmarks: The quality of the AI analysis is highly dependent on the quality of your input. Don't be afraid to: -- Refine the prompts in the AI Agent and Message a model nodes to better match your specific business context and KPIs. -- Curate your benchmarks_data. Test different sets of benchmark data (e.g., "last 30 days top performers" vs. "all-time best") to see how it influences the AI's recommendations. Finding the right combination of prompt and data is key to unlocking the most effective insights.
n8n Workflow: Meta Ads Performance Analysis with GPT-4 & Gemini AI Comparisons
This n8n workflow automates the process of extracting Meta (Facebook) Ads performance data, performing AI-driven analysis using both OpenAI's GPT-4 and Google's Gemini, and then storing the results in Google Sheets. It provides a structured comparison of AI insights, making it easier to evaluate ad campaign effectiveness and identify actionable recommendations.
What it does
This workflow performs the following key steps:
- Triggers on Schedule: The workflow is set to run on a predefined schedule (e.g., daily, weekly).
- Fetches Meta Ads Data: It connects to the Facebook Graph API to retrieve performance data for specified Meta ad campaigns.
- Prepares Data for AI Analysis: The raw ad data is transformed and formatted into a structured prompt suitable for AI models.
- Analyzes with OpenAI (GPT-4): The prepared data is sent to OpenAI's GPT-4 model for detailed performance analysis and recommendations.
- Analyzes with Google Gemini: Simultaneously, the same data is sent to Google's Gemini Chat Model for an alternative analysis and recommendations.
- Parses AI Outputs: The responses from both AI models are parsed to extract structured insights and recommendations.
- Combines AI Insights: The insights from GPT-4 and Gemini are merged into a single dataset for comparison.
- Stores Results in Google Sheets: The combined, AI-analyzed performance data and recommendations are appended to a Google Sheet for historical tracking and review.
Prerequisites/Requirements
To use this workflow, you will need:
- n8n Instance: A running n8n instance.
- Facebook Graph API Credentials: An authorized Facebook Graph API credential configured in n8n with access to your Meta Ad Accounts.
- OpenAI API Key: An OpenAI API key with access to GPT-4 models.
- Google Gemini API Key: A Google Gemini API key.
- Google Sheets Credentials: An authorized Google Sheets credential configured in n8n with write access to your target spreadsheet.
- Google Sheet: A Google Sheet set up to receive the output data (e.g., columns for ad campaign details, GPT-4 analysis, Gemini analysis, etc.).
Setup/Usage
- Import the Workflow: Download the provided JSON and import it into your n8n instance.
- Configure Credentials:
- Facebook Graph API: Update the "Facebook Graph API" node with your Facebook Graph API credential.
- OpenAI: Update the "OpenAI" node with your OpenAI API credential.
- Google Gemini Chat Model: Update the "Google Gemini Chat Model" node with your Google Gemini API credential.
- Google Sheets: Update the "Google Sheets" node with your Google Sheets credential and specify the Spreadsheet ID and Sheet Name where you want to store the data.
- Customize Schedule: Adjust the "Schedule Trigger" node to your desired frequency for running the analysis (e.g., daily, weekly).
- Configure Facebook Graph API Node:
- Specify the Ad Account ID and any other relevant parameters to fetch the desired ad campaign data.
- Adjust the "Time Range" and "Breakdowns" as needed for your analysis.
- Review AI Prompts:
- Examine the "Code" node that prepares the prompt for the AI models. Customize the prompt to guide the AI towards the specific type of analysis and recommendations you require (e.g., focus on ROI, CTR, specific campaign goals).
- Activate the Workflow: Once configured, activate the workflow. It will now run automatically based on your schedule, providing regular performance insights.
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Update Node Parameters All Google Sheets nodes: Select your finance spreadsheet Slack nodes: Select your finance channel Schedule Trigger: Adjust time if you prefer a different check-in hour (default: 11 PM) Postgres Chat Memory: Change sessionKey to something unique (e.g., financetrackeryour_name) Keep tableName as n8nchathistory_finance or rename consistently C. Slack Trigger Setup Activate the "Bot Mention trigger" node Copy the webhook URL from n8n In Slack App settings, go to Event Subscriptions Enable events and paste the webhook URL Subscribe to bot event: app_mention Save changes Test the Workflow Activate both workflow branches (scheduled and agent) In your Slack channel, mention the bot: @YourBot ₹100 cash snacks Bot should respond with a preview Reply "yes" to approve Verify Google Sheets are updated How to customize Change Transaction Categories Edit the AI Agent's system message to add/remove categories. 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