There's a difference between restating your metrics and diagnosing your performance. One saves you a click. The other saves your account.
AI Marketing Analyst for Ad Accounts
Chat-first AI marketing analyst that connects to Google Ads, Meta Ads, and GA4. Ask questions about your ad data and get text-based reports using templates (weekly recap, creative analysis, audit, root cause). Credit-based pricing with a free tier limited to 1 account and $250K ad spend. Slack integration available.
Diagnostic dashboard for Meta
Root cause diagnosis for Meta campaigns. Tells you why performance changed and what to do next.
GoMarble and Sentrum both use AI to help media buyers understand ad performance — but they approach the problem from opposite directions. GoMarble is a conversational interface: connect your ad accounts, ask questions, and get text-based answers. It's fast for pulling metrics and running templated reports like weekly recaps or creative audits. But there's a ceiling. GoMarble restates what happened in your account. Sentrum explains why it happened. When your CPA spikes 30%, GoMarble can tell you it spiked. Sentrum traces the root cause through a diagnostic chain — was it CPM pressure from audience saturation? CTR decline from creative fatigue? A CVR drop from landing page issues? A placement mix shift inflating costs? That's the difference between reporting and diagnosis. GoMarble's own content acknowledges a fundamental limitation of MCP-based AI tools: they 'give access without understanding.' Sentrum was built specifically to close that gap — not just accessing your data, but understanding the causal relationships between metrics that explain performance changes.
If diagnosis and action are your priority, here's where Sentrum delivers:
GoMarble tells you your CPA went up. Sentrum tells you it went up because creative fatigue drove CTR down 12%, which shifted spend to Reels placements with 2x higher CPMs, compounding the cost increase. Every insight is traced to a root cause with supporting evidence — not just a summary of what your dashboard already shows.
GoMarble sees creative names and performance metrics. Sentrum uses Gemini vision to analyze what your creatives actually look like — hook type, visual style, messaging angle, color palette, strengths and weaknesses. When we say a creative is fatiguing, we can tell you what about it stopped working and what creative direction to try next.
GoMarble outputs text-based reports. Sentrum gives you interactive diagnostic dashboards with real-time Recharts visualizations — CPM trend overlays, CTR decay curves, spend pacing charts, creative performance timelines. You can explore the data, not just read a summary of it.
Sentrum doesn't just flag isolated metrics. It traces diagnostic chains: creative fatigue → placement drift → audience saturation → spend pacing. The Creative Diversity Scorer (Shannon entropy) and Creative Velocity Tracker show how your creative mix is evolving. Per-creative fatigue detection scores CTR and CPR trends over time. These systems work together to surface the real story.
GoMarble's reports describe what happened. Sentrum's playbook engine generates specific action recommendations driven by diagnosed root causes — with the Campaign Structure Auditor catching audience overlap, the CPMr Dashboard alerting on cost efficiency shifts, and creative flighting narratives showing the impact of launching or pausing specific ads.
| Feature | Sentrum | GoMarble |
|---|---|---|
| Root cause diagnosis | ||
| Explains WHY performance changed | Restates metrics | |
| AI creative vision analysis | ||
| Interactive dashboards & charts | ||
| Creative fatigue detection | Per-creative scoring | |
| Creative diversity scoring | ||
| Diagnostic chains | ||
| Campaign structure auditing | ||
| CPMr dashboard with alerts | ||
| Action recommendations engine | ||
| Chat-based Q&A interface | ||
| Google Ads support | ||
| GA4 integration | ||
| Slack integration | ||
| Free tier | 1 account / $250K | |
| Report templates/recipes | Playbook engine |
You want a quick chat interface to ask questions about ad metrics across Google and Meta. You prefer text-based answers over dashboards. You need a free tier to get started. You manage multiple platforms and want one conversational tool. You don't need to explain the causal 'why' behind performance changes to clients.
You need to understand WHY your Meta Ads performance changed — not just what changed. You want AI that actually sees your creatives and diagnoses fatigue, not just reads metric tables. You need interactive dashboards to explore data visually. You present to clients or stakeholders who expect root-cause analysis. You want action recommendations tied to diagnosed problems, not generic best practices.
GoMarble can tell you that your CPA increased and which campaigns or creatives saw the biggest changes. But it typically restates metrics rather than diagnosing root causes. Sentrum traces the causal chain — separating CPM pressure from CTR decline from CVR shifts from mix changes — so you know exactly what drove the increase and what to do about it.
No. GoMarble works with creative names, IDs, and performance metrics — it doesn't see the actual visual content of your ads. Sentrum uses Gemini vision to analyze your creative images: hook type, visual style, messaging angle, color palette, and specific strengths and weaknesses. This is critical for understanding creative fatigue and planning new creative direction.
Sentrum is purpose-built for Meta Ads diagnostic intelligence. We go deep on one platform rather than shallow across many. If you need multi-platform conversational reporting, GoMarble covers more ground. If you need to truly understand why your Meta campaigns are performing the way they are, Sentrum goes significantly deeper.
GoMarble's own content about MCP-based AI tools acknowledges that connecting AI to your ad data gives it access to metrics without genuine understanding of the causal relationships between them. Sentrum was built specifically to solve this — our diagnostic engine understands how CPM, CTR, CVR, placement mix, creative fatigue, and audience saturation interact to drive performance changes.
They serve different purposes. Chat is great for quick one-off questions. But for systematic diagnosis — spotting trends, comparing time periods, understanding creative lifecycle patterns — interactive dashboards with visual timelines are far more effective. Sentrum gives you both diagnostic intelligence and the visual tools to explore it.
Connect your account and see why your campaigns are performing the way they are.
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