Why diversity beats count
Adding a fourth near-duplicate of your best hook does not add a fourth auction slot; it splits the one slot that hook already owns. The marginal creative only earns incremental reach if it is distinct enough that retrieval treats it as a new entity. That is why two well-differentiated creatives can outperform a dozen variations on a single theme.
Diversity is measured across several dimensions, not just one. Omniscia recognises six hook types, problem callout, curiosity gap, bold claim, question, visual shock and testimonial opener, and scores Hook Variety as a weighted part of its creative report. Spreading your set across those types is what gives Andromeda distinct entities to deliver.
Map your coverage with branches
Rather than guessing whether your set is diverse enough, Omniscia turns coverage into a map. Untapped Branches lists the hook, angle and format combinations you have not yet covered, each with a tip on how to fill the gap, so you can add the creatives that will actually expand your reach instead of more of what you already have.
The practical workflow is to stop counting and start covering: build out distinct branches until the redundancy efficiency figure stops improving, then hold there. At that point adding more assets only increases clustering and the spend it wastes.
how it works
- 01
audit hook variety
Run your set through Omniscia and check its Hook Variety score across the six recognised hook types.
- 02
read the branch map
Open Untapped Branches to see which hook, angle and format combinations your set is missing.
- 03
add distinct, not more
Build creatives that fill the missing branches rather than producing more variations of hooks you already run.
- 04
stop at diminishing returns
Hold the count once the redundancy efficiency figure stops improving; beyond that, extra assets just cluster and waste spend.
frequently asked
- Is there a best number of creatives per ad set?
- No. The count matters less than diversity. Under Andromeda, near-duplicate creatives collapse into one auction slot, so what expands reach is distinct hooks, angles and formats, not a higher number of assets.
- Why does adding more creatives sometimes not help?
- Because the new creatives are too similar to existing ones, so retrieval groups them into the same slot. They split delivery instead of adding it, which raises clustering without raising reach.
- How do I know if my set is diverse enough?
- Omniscia scores Hook Variety across six hook types and lists Untapped Branches, the hook, angle and format combinations you haven't covered, so you can see your coverage rather than guess.
- What hook types should I cover?
- Omniscia recognises problem callout, curiosity gap, bold claim, question, visual shock and testimonial opener. Spreading a set across distinct types gives the retrieval engine separate entities to deliver.
Last updated June 6, 2026