Perplexity
by Perplexity AI
AI answer engine with cited sources and multiple models
PricingFreemium
Starts at$17/month billed annually (Pro); $20/month billed monthly
Free tierYes
Platformsweb, ios, android, api
Models usedMultiple third-party models (e.g. GPT-6.1 Sol, Gemini 3.8 Flash, Claude Sonnet 5.5, Grok 4.7, Kimi K3, GLM 5.3)
Best for
Users who want quick web answers with inline citations they can check.
Overview
Perplexity is a search-focused AI assistant that answers questions with cited web sources. Paid tiers (Pro, Max) add more Pro Searches, research, file uploads and a choice of frontier models.
Strengths and limits
- Every answer includes inline source citations
- Paid plans let you pick models from OpenAI, Google, Anthropic, xAI and others
- Computer agent can build apps, docs and tools
- Free tier limits Pro Searches and advanced models
- Consumer plan prices are not shown on the public Pro page
What the free plan includes
Practically unlimited basic searches, about 3 Pro Searches per day, automatic model selection, limited file uploads and 1 Research query per month.