Open-source alternatives to paid AI tools

SkipTheSub / Perplexity

Open-source alternatives to Perplexity

Monthly price for Perplexity: TBD (unverified — never invented). Below: 2 open-source alternatives.

ItzCrazyKns/Vane

What it can do

Vane is an AI-powered answering engine. (GitHub project description) source

What it can't do

TBD

Minimum hardware

TBD

Setup difficulty

2/5 — Single documented command (docker run / pip / npm / brew install) source

Freshness

Stars
37,359
Last push
2026-09-01
Latest release
v1.12.2

Running cost (per month, roughly)

VPS: TBD — minimum RAM not verified

Local electricity: $ —/mo watts / 1000 × hours/day × 30 × 0.1831 $/kWh source

Fetched 2026-10-16 from the GitHub API.

Open on GitHub

khoj-ai/khoj

What it can do

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free. (GitHub project description) source

What it can't do

TBD

Minimum hardware

TBD

Setup difficulty

TBD

Freshness

not fetched yet

Running cost (per month, roughly)

VPS: TBD — minimum RAM not verified

Local electricity: $ —/mo watts / 1000 × hours/day × 30 × 0.1831 $/kWh source

Open on GitHub

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