Google's AI Max broad match doesn't just expand your keywords — it drifts from them. Semantically related turns into semantically distant, and your budget flows to searches that have nothing to do with your business. Our NLP-powered Semantic Drift Detector measures exactly how far the AI has wandered from your seed keywords and flags every drifted term draining your spend.
Find Your Drifted TermsAI Max broad match expansion doesn't stay close to your intent — it drifts. The AI interprets your seed keywords through its own semantic model and progressively expands to queries that are further and further from what you actually sell. On average, accounts running AI Max waste 12% of their budget on semantically drifted search terms that will never convert.
Average Spend on
Semantically Drifted Terms
Typical Monthly Waste
on Drifted Queries
Avg. Drifted Search Terms
Per Account
We analyze every search term, measure semantic distance, and flag the drift.
| Search Term | Seed Keyword | Drift Score | Spend | Conv. |
|---|---|---|---|---|
| free excel templates for sales | luxury crm software | 87% | $342.10 | 0 |
| how to organize contacts | enterprise crm platform | 72% | $287.55 | 0 |
| gmail contact manager | crm integration tools | 64% | $198.20 | 0 |
| sales tracking spreadsheet | sales pipeline software | 45% | $156.40 | 1 |
| customer database access | crm database solution | 28% | $89.30 | 3 |
Showing 5 of 47 drifted search terms...
NLP-driven drift detection, automated negatives, and ongoing monitoring.
We use semantic embeddings to measure the true distance between your seed keywords and the search terms the AI is matching. Every query gets a drift score — so you know exactly how far the AI has wandered.
Drifted terms are automatically clustered and converted into negative keyword lists. No manual review of thousands of queries — just export the list and apply it to your campaigns immediately.
AI doesn't drift once and stop — it keeps expanding. Our weekly monitoring catches new drift as it happens, so your negative keyword lists stay current and your budget stays focused on real customers.
AI Max doesn't match keywords the way traditional broad match does. It uses Google's semantic understanding models to interpret what your keyword means — and then finds searches it believes are related. The problem is that "related" in the AI's model and "relevant to your business" are very different things. A seed keyword like "luxury CRM software" becomes "free contact manager" becomes "excel spreadsheet for sales" in the AI's associative chain.
Without guardrails, the AI expands further and further from your original intent every week. Most advertisers don't notice because the drift is gradual — a few new irrelevant terms at a time — until 12% or more of their budget is flowing to searches that will never convert. Built by John Collins, a 25-year Google Ads veteran with $300M+ in managed ad spend, our Semantic Drift Detector catches what the AI won't tell you.
The difference semantic drift detection makes in your AI Max campaigns.
Stop paying for irrelevant AI matches. Find out exactly where the drift is happening and shut it down.
Find Your Drifted TermsResults in under 1 hour · Read-only access · 100% money-back guarantee