Pe
Perplexity answers questions by searching the web and citing sources for every claim, with Pro giving access to multiple underlying AI models in one interface.
Best for
Solo founders who need fast, cited answers to specific questions rather than long-form writing.
Pricing
From $0
Setup effort
Quick win
Quick win — under 30 minutes to value
Added to SoloStack
June 16, 2026
Why it's on SoloStack
One of the more honest free tiers in AI - unlimited standard search plus 5 Pro searches a day. It genuinely struggles with fast-changing information like recent pricing changes, so verify anything time-sensitive with a second source.
What we like
- Citations make claims easy to verify
- Free tier is genuinely usable daily
- Pro gives access to multiple AI models in one place
Watch out for
- Struggles with very recent or fast-changing information
- Not designed for long-form content writing
- Free tier capped at 5 Pro searches per day
More like this
Other AI for Research & Insights to consider
Tr
From $12/mo
Trendr
Surfaces what your industry is talking about this week.
Best forFounders who need to stay on top of their industry without spending hours doing it.
Quick win
Ch
From $0
Chartist
Turns raw survey data and CSVs into visual summaries.
Best forFounders who have user survey data but no analyst to make sense of it.
Some setup
El
From $0
Elicit
AI research assistant built for academic papers.
Best forSolo founders doing serious market research or evidence-based decisions who need to go deeper than a web search.
Some setup