Keyword Insights vs SEOcluster.ai

Keyword Insights

Buy it for the clustering engine, which is genuinely better than doing SERP-overlap grouping yourself in a spreadsheet; treat the AI writer as a bonus rather than a reason. Agencies planning content hubs across many sites get the most out of it, solo bloggers publishing four posts a month will burn less money on Surfer or Frase.

Pros

• +SERP-overlap clustering is the core competency and it is fast at scale
• +Public API means clustering can be driven from your own scripts
• +Basic plan ships 10,000 credits, enough for a real clustering job not a demo
• +Discovery pulls from Reddit, Quora and PAA, not just a keyword database

Cons

• −No free tier - entry is a paid $1 trial that ends in pay-as-you-go
• −Basic is single-seat, so any team needs the $99 Professional plan
• −Full agent-written articles cost 1,200 credits, which drains an allowance quickly
• −Volume and difficulty data is thinner than Ahrefs or Semrush

SEOcluster.ai

SEOcluster.ai's edge is starting from actual Search Console performance data instead of third-party keyword databases, so clusters reflect queries the site already ranks for rather than generic volume estimates. It's built for sites with meaningful existing GSC history; a brand-new site with little search data won't get much out of the clustering.

Pros

• +Clusters use actual ranking queries from GSC rather than estimated search volume
• +Cannibalization detection scores overlap severity instead of just flagging it
• +Content briefs include FAQs and internal link suggestions, not just an outline

Cons

• −Usefulness depends entirely on how much Search Console history the connected site has
• −Free plan caps out at 1,500 keywords, too small for most established sites
• −No company location or team background published

Is Keyword Insights cheaper than SEOcluster.ai?

On published entry prices, SEOcluster.ai starts lower — $29/mo against $58/mo for Keyword Insights. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Keyword Insights or SEOcluster.ai have a free tier?

SEOcluster.ai has a free tier; Keyword Insights has paid plans only.

Which has a public API, Keyword Insights or SEOcluster.ai?

Keyword Insights ships a public API, as of our last verification. A public API for SEOcluster.ai is not confirmed by us — check its developer docs before you plan an integration.