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Copilot Creative: How AI Identifies Your Best-Performing Ads

How Copilot Creative analyzes your ads, surfaces top performers, and detects creative fatigue using personalized benchmarks and AI trained on your own data.

January 12, 2026
5 min
Nanga Team

Copilot Creative is Nanga's AI module that automatically analyzes your ad creatives. In seconds, it identifies the ads that deliver, the ones wasting budget, and those starting to fatigue — so you can act before results degrade.

Three categories, one clear picture

Every analyzed creative is classified into one of these categories:

  • Top Performer — Results above your own historical benchmarks, meaningful budget, strong engagement. These are your workhorses: duplicate, scale, or use as creative reference.

  • Bad Performer — Metrics below your standards across multiple dimensions (objective, engagement, cost). These ads consume budget without proportional return.

  • Ad Fatigue — Creatives that performed well but now show signs of decline: dropping performance, rising acquisition costs, fading engagement. The signal to start preparing a replacement.

Fatigue works as an additional flag: a Top Performer can be marked "fatiguing" if indicators show early saturation. It is an anticipation signal, not a verdict.

Benchmarks calibrated to your account

Copilot Creative does not compare your ads to market averages or arbitrary thresholds. Each creative is evaluated against your own account's performance history, over a rolling 12-month window.

In practice: if your account averages a 3.5 ROAS, an ad at 2.0 will be flagged as underperforming — even though 2.0 would be excellent on another account. And vice versa.

Smart segmentation

Benchmarks are calculated separately along two axes to ensure fair comparisons:

By format:

  • Video — video, reel, dynamic
  • Image — static, carousel, single image, collection, gif

By maturity:

  • Early (0–7 days) — Learning phase, metrics still volatile
  • Established (8–30 days) — Stabilized performance
  • Mature (30+ days) — Long-running, saturation risk

A 5-day-old video is compared to other recent videos, not to images that have been running for two months. This granularity is what makes the classification relevant.

Multi-criteria scoring

Classification does not rely on a single metric. Copilot Creative evaluates each ad across multiple dimensions simultaneously:

  • Objective metric — Your campaign's primary KPI (ROAS, CPA, CAC, CPI...), configurable to match your goals. This is the dominant criterion.
  • Volume and budget — An ad that performs on a small budget does not carry the same weight as one that delivers at scale.
  • Creative engagement — For images: click-through rate. For videos: the combination of hook rate (capture) and hold rate (retention).
  • Trend — Is performance stable, growing, or declining? A dynamic comparison window adapts to each creative's age.
  • Click efficiency — Cost per click, in context.

Each dimension contributes to the final score with a different weight. The objective metric carries the most weight, but an ad cannot be "top" if it fails on the other criteria.

False positive protection

A creative whose performance is rapidly collapsing is automatically excluded from Top Performers, even if its historical metrics remain high. Copilot Creative looks at trajectory, not just position.

Video vs Image: two approaches

The "creative signal" — the engagement metric used to assess an ad's attractiveness — differs by format:

ImagesVideos
Primary signalClick-through rate (CTR)Hook Rate + Hold Rate
What it measuresAbility to generate actionCapturing AND retaining attention
Optimization leverVisual, copy, CTAThe first few seconds (hook)

For videos, both metrics matter. A video can fail in two different ways: good hook but content that does not retain, or a slow start that loses viewers before the value. Copilot Creative detects both cases.

Video thresholds adapt to the platform: TikTok uses a 2-second window (fast scrolling), Meta and Google use 3 seconds.

What Copilot Creative delivers

For each analysis, Copilot Creative returns:

  • Your top 10 creatives with an explanation of why they perform and a recommendation (scale, duplicate the concept...)
  • Your bottom 10 creatives with a precise diagnosis (which criterion is failing, since when)
  • Fatiguing creatives with an anticipation signal (when to prepare a replacement)

Each result comes with an AI-generated analysis in natural language — not just numbers, but an actionable explanation.

Going further

Copilot Creative integrates into Nanga's broader Copilot ecosystem:

  • Copilot — Ask questions about your results, request details, explore your data through natural conversation
  • Copilot Competitors — Compare your creative groups against each other and cross-reference your performance with public Ad Library data to benchmark your strategy

Summary

Copilot Creative automatically identifies your best-performing creatives, those to cut, and those showing fatigue. All based on your own historical data — not generic benchmarks — with adaptive thresholds by platform, format, and maturity.

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