Nano influencer
Nano describes creators below roughly ten thousand followers. The tier trades reach for intimacy: engagement rates run structurally highest here and recommendations carry near-personal weight, but single-post outcomes vary widely. Brands typically buy nano in portfolios of several creators so variance averages out.
Worked example
Five nano creators at modest fees can outperform one mid-tier placement for a local or niche product — with five chances instead of one.
Related: Micro influencer · Engagement rate
Full context in the guides, or measure it yourself with the free tools.