Pick dbt if
analytics engineers who will stay on Developer Free (1 seat, 3,000 models / month, 1 project) while they open a first Explorer graph, then buy Starter at $100 / user / month when they want Catalog lineage and the Semantic Layer.
Read the dbt pagePick Fivetran if
data teams who will stay on Standard’s free bucket (500,000 connection MAR / 3,500 activation MAR / 5,000 model runs) while they open a first Connections list, then pay list-price MAR (pricing-page examples: Facebook Ads $22.06, Google Analytics 4 $15.88, four-connector total $511.15) when they outgrow the free rows.
Read the Fivetran page