Can I vibecode Perplexity?

KINDA · weekend project

price $20/moyou'd save $240/yrbuild time multi-daycategory 🔍 ai searchreplaced by 3 people

A retrieval-plus-LLM answer engine is buildable, but Perplexity's search stack, source ranking, UX, mobile/browser surfaces, and model access make full parity hard.

the prompt

Build me a personal answer engine like Perplexity, wrapping real search and LLM APIs,
not rebuilding them. Requirements:

- A local web app on localhost:3000: Node + Express + htmx, one input box, streamed
  answers.
- Per question: query the Brave Search API (key in .env), fetch the top 6 results with
  undici, extract readable text with @mozilla/readability + jsdom, then pass the
  question plus numbered excerpts to Claude or GPT (key in .env) with instructions to
  answer only from the excerpts and cite as [1][2].
- Render citations as footnote links; show the full source list under every answer.
- Follow-up questions stay in the same thread with prior Q&A in the context window.
- Threads stored in SQLite via better-sqlite3; a sidebar lists past threads by first
  question.
- If a page fails to fetch or extract, drop it and continue. Never cite a page that was
  not fetched.
- Binds to localhost only; no accounts, no telemetry, only the search and LLM calls
  leave my machine.
- Out of scope: crawling my own web index, model routing, and mobile apps. Answer
  quality tracks the search API, that is the deal.
- README: which keys to get (Brave Search has a free tier) and rough per-query cost.

$ open in your agent (prompt prefilled, you press enter) or copy it raw · this prompt is generated from the build plan · improve it via PR

why people still pay

They pay because answers arrive fast with sources and fewer query-building chores.

what you lose

xsearch quality

xsource ranking

xmodel routing

xmobile/browser apps

xpublisher integrations

xspeed

share on X ↗"I just replaced Perplexity ($20/mo) with one prompt"

the escape hatch

Don't feel like building it? These folks already made it free.

KhojA personal AI that searches the web and your files; broader than Perplexity, and noticeably heavier to run.36kaug 2026open source↗

VanePerplexity with the meter removed: cited answers and deep research, provided you can run one Docker stack.36kapr 2026open source↗

GPT ResearcherA research agent rather than a search box; it returns cited reports and a bill from whichever model you chose.29kjul 2026open source↗

all 5 free alternatives to Perplexity →· no votes, no pay-to-list · just what's real

the numbers

Perplexity pricing

plan	monthly	annual (per mo)	what you get
standard	$0	$0	5 Pro Searches/day; 3 file uploads/day; 40 MB/file; practically unlimited basic searches.
pro	$20	$16.67	Higher Pro Search and file limits; 40 MB/file.
education pro	$10/user	—	Discounted Pro access for verified students and educators.
max	$200	$166.67	10,000 Computer credits/month.
enterprise pro	$40/user	$33.33/user	500 Computer credits/month; 500 files/project; 15,000 persistent files/user; 100 session uploads/week; 50 MB/file.
enterprise max	$325/user	$270.83/user	15,000 Computer credits/month; 5,000 files/project; 50,000 persistent files/user; 1,000 session uploads/week.

free tier5 Pro Searches/day; 3 file uploads/day; 40 MB/file

billingmonthly + annual for Pro, Max, and enterprise tiers; Education Pro is monthly; enterprise seats can mix Pro and Max

hidden costsComputer credits expire at the end of each month and do not roll over. Refills and auto-refill are available; 100 credits are priced as $1. Upgrades can be prorated.