See the patterns in what people submit

Idea clustering that groups themes and merges duplicates

Idea clustering sorts a long list of submissions into themes so reviewers see patterns instead of a pile. Brainstormer groups ideas in a challenge into themes with AI, detects near duplicates and merges them while keeping every author and vote, so the strongest ideas are not split across several copies.

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Ideas grouped into named themes within each challenge
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Near duplicates detected even when worded differently
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Merges keep all authors and all votes
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Themes appear in the board report for leadership

Why clustering matters once ideas start coming in

A challenge that works gets a lot of submissions, and many of them overlap. Ask "How could we cut customer onboarding time in half?" and you will get several versions of "send a welcome checklist", a few about automating account setup, and a handful about training. Read as a flat list, it looks like chaos. Grouped, it shows that the company already agrees on three or four directions.

Clustering also changes how reviewers work. Instead of judging sixty ideas one by one, they compare the strongest idea in each theme, and they can see where effort is concentrated. A theme with many ideas and many votes is a signal about a real pain point, even before any single idea is approved.

Done by hand, this is the affinity mapping step of a workshop: moving sticky notes into groups and naming them. It works in a room with twenty notes. It does not scale to a company wide challenge that runs for two weeks.

Clustering ideas by hand compared with Brainstormer
Task	Sticky notes or spreadsheet	Brainstormer
Finding duplicates	Someone reads every idea and remembers the others	Detected by AI, merged on confirmation
Keeping credit	Second author often lost	All authors kept on the merged idea
Keeping votes	Votes split across copies	Votes combined on the merged idea
Naming themes	Done in a workshop, often redone later	Themes suggested per challenge
Showing leadership	Photo of a wall or a pivot table	Themes listed in the board report

How duplicate merging works

Brainstormer compares ideas within a challenge and flags ones that describe the same thing in different words. An admin reviews the suggestion and merges them. The merged idea keeps every author, so both people who proposed it get credit, and it keeps every vote, so the combined support is visible.

This matters for fairness as much as tidiness. Without merging, a popular idea split across three copies ranks lower than a single idea with fewer votes, and the second and third authors feel ignored. With merging, the idea ranks on its real support and everyone who suggested it stays attached to it.

After merging, the idea is expanded and scored as usual, against the strategic goals your company set. See idea prioritization for how that scoring works.

Themes as a tool for reviewers and leadership

Themes are grouped per challenge, so each campaign gets its own picture. Reviewers can work theme by theme, shortlist the best idea in each, and move the rest to rejected or keep them in review with a note. Every stage change is recorded with who, when and from which stage to which.

The board report for a challenge lists the themes along with the ranking, stage counts and a recommendation. For leadership, the themes are often the most useful part: they show what employees see as the biggest problems, not just which single idea scored highest.

Clustering fits into the wider lifecycle described on the idea management platform page. For how challenges are set up in the first place, see innovation challenge software.

Getting started with clustered challenges

Clustering works best when a challenge has a clear question and a deadline, because the themes then answer one question rather than everything at once. Team plans run up to 3 open challenges at a time, and Business and Enterprise have no limit on challenges.

Duplicate merge and theme grouping are included on every plan. Plans are billed per workspace with a member limit, not per idea, so a busy challenge does not cost more. Compare the three plans on the pricing page.

To see it on real content first, try the demo on the homepage, then start your workspace and invite your team by email.

Questions

What is idea clustering?

Idea clustering groups similar ideas into themes so reviewers can see patterns in a large set of submissions. In Brainstormer it also includes detecting and merging duplicates.

Are duplicates merged automatically?

Duplicates are detected by AI and merged by an admin. The merged idea keeps all authors and all votes.

Do themes cross challenges?

Themes are grouped within each challenge, so every campaign has its own set of themes that answer its own question.

Which plans include clustering?

Duplicate merging and theme grouping are included on Team, Business and Enterprise.