Perplexity Pro at $20/month is an "AI search engine" - different from ChatGPT (chat) and Google (link search). After 8 months of use for research, fact-checking, and shopping decisions, here's the honest take for Vietnamese users.
TL;DR
- Score: 8.5/10 for research-heavy users
- Price: Free / Pro $20 / Enterprise $40 per user
- Buy if: Researcher, consultant, investor, shopper comparing before buying
- Skip if: Creative writing (use Claude) or multimodal (use ChatGPT)
What's in Perplexity Pro?
- 300+ Pro searches/day (vs 5/day free)
- Choose model: GPT-5.4, Claude 4.7, Gemini 2.5, Grok 3, Sonar (in-house)
- Pro Search - multi-step research with automatic follow-ups
- Spaces - pinned context + knowledge files
- PDF/CSV upload and analysis
- File generation (code, reports)
- Comet browser (AI-first browsing)
Test 1: Market Entry Research
Task: "Compare 5 CRMs for Vietnamese SMBs: price + features + Vietnamese support".
Result: 15-minute full report with 40+ cited sources. 90% accuracy (I verified manually). Auto-formatted tables.
Versus: ChatGPT search - weaker citations. Claude Pro - no web search.
Verdict: Perplexity crushes research tasks.
Test 2: Real-Time Fact-Check
Task: "Latest ChatGPT Team price?" + "Apple AI news this week?"
Result: Answers <5s with full source links. Genuinely real-time (no stale cache).
Winner: Perplexity > ChatGPT > Google for fast fact-check.
Test 3: Shopping Decision
Task: "Mac vs ThinkPad for a dev on 40M VND budget?"
Result: Synthesizes reviews from Reddit, YouTube, blogs. Weighs evidence by source authority. Recommends specific models + VN retailers.
Verdict: Best decision-support tool I've used.
Strengths
- Best citation quality - every claim has a source
- Real-time - no stale cache
- Multi-model - pick Claude/GPT/Sonar per task
- Spaces - persistent context for long research
- Comet browser - AI sidebar on every page
- Pro Search - autonomous multi-step agent
- Highest value at $20 - cheaper than Google Workspace AI
Weaknesses
- Creative writing weaker than Claude/ChatGPT
- No image generation
- No mature voice mode
- Default model (Sonar) is weak - remember to switch to Claude 4.7
- Vietnamese: OK but few VN sources → EN-biased results
- Mobile app weaker than ChatGPT
Who Should Buy?
- Researchers, analysts, consultants - daily workflow
- Investors / business decision makers - fast fact-check
- Journalists, writers needing source-backed content
- Students (research-heavy homework)
- Shoppers comparing products before big purchases
Recommended Combo
Perplexity Pro $20 + Claude Pro $20 = $40/month - perfect knowledge-worker stack for Vietnamese users:
- Perplexity: research + fact-check (external knowledge)
- Claude: writing + code + reasoning (internal thinking)
Test Perplexity Pro → (free tier 5 searches/day is enough to validate).
