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Head-to-head · Ai Assistant

Perplexity vs DeepSeek

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Perplexity #5 in Ai Assistant 9.0/10 Free plan Free plan✓ 3 of 4 features Visit Perplexity
DeepSeek #7 in Ai Assistant 8.8/10 Free plan Free plan✓ 2 of 4 features Visit DeepSeek

Perplexity leads on 0 checks, DeepSeek on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePerplexity · 9.0/10
  • Free planboth
  • Most featuresPerplexity · 3 of 4

Perplexity scores higher on our rubric for ai assistant: 9.0 against 8.8 out of 10; our editors rank them #5 and #7.

Perplexity is the better fit for research-oriented users who want cited answers. DeepSeek is the better fit for people seeking a free, general-purpose assistant.

  • Perplexity fits best

    Research-oriented users who want cited answers

  • DeepSeek fits best

    People seeking a free, general-purpose assistant

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Side by side

Feature Perplexity 9.0/10 Visit ↗ DeepSeek 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #5 in Ai Assistant #7 in Ai Assistant
Best for Research-oriented users who want cited answers People seeking a free, general-purpose assistant
Pricing model Free plan + paid Free
Starting price — Free
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Mobile Cloud, Mobile
Platforms Web, iOS, Android Web, iOS, Android
Support Email, Live chat, Community, Docs Email
Integrations 400+ integrations 3 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Perplexity 3/4 · DeepSeek 2/4
Web search ✓ ✓
File analysis Not checked yet Not checked yet
Image generation ✓ (best) Not checked yet
Mobile apps ✓ ✓
Specs
Context window Not checked yet Not checked yet
Model choice Not checked yet Not checked yet
Our review
Pros
  • Real-time web answers include inline citations and follow-up conversations
  • Deep Research, file analysis, image generation, and model selection
  • Connects with 400 apps across work and productivity platforms
  • Free AI chat through the web and official iOS and Android apps
  • Search, file and image inputs, and text, table, and code generation
  • API access plus published open-source model weights and research materials
Cons
  • Free access has basic models and limited daily use
  • Advanced research and creation features require paid plans
  • The broad feature set may exceed the needs of simple Q&A users
  • User inputs, uploaded files, photos, and chat history may be collected
  • The chatbot is free, but API services are separately priced
  • Support is listed through email
Our verdict

Perplexity is an AI answer engine that searches the live web and returns conversational responses with inline citations. It supports follow-up questions, multi-step Deep Research reports, file and photo analysis, image generation, and…

Read the review →

DeepSeek is a conversational AI assistant available on the web and through official iOS and Android apps. It is aimed at people who want general chat, coding help, search, and ways to work with files or images without paying for the…

Read the review →
  1. PerplexityAi Assistant 9.0Free plan
  2. DeepSeekAi Assistant 8.8Free plan

Strengths and trade-offs

  • Perplexity — where it wins

    • Real-time web answers include inline citations and follow-up conversations
    • Deep Research, file analysis, image generation, and model selection
    • Connects with 400 apps across work and productivity platforms

    Where it doesn't

    • Free access has basic models and limited daily use
    • Advanced research and creation features require paid plans
    • The broad feature set may exceed the needs of simple Q&A users

  • DeepSeek — where it wins

    • Free AI chat through the web and official iOS and Android apps
    • Search, file and image inputs, and text, table, and code generation
    • API access plus published open-source model weights and research materials

    Where it doesn't

    • User inputs, uploaded files, photos, and chat history may be collected
    • The chatbot is free, but API services are separately priced
    • Support is listed through email

More comparisons

All ai assistant comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update