Perplexity AI vs ChatGPT vs DeepSeek vs MostlyAI

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Perplexity AI
vs
Competitor 1
ChatGPT
Competitor 2
DeepSeek
Competitor 3
MostlyAI
Compare
4 tools · best value per row highlighted
Your tool Perplexity AI
perplexity.ai
Search that gives answers instead of links
Remove
Competitor ChatGPT
chatgpt.com
Your AI assistant for everything
Make main Remove
Competitor DeepSeek
deepseek.com
DeepSeek is an AI lab and chat assistant.
Make main Remove
Competitor MostlyAI
mostly.ai
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
95.2Mvisits/mo
5.6Bvisits/mo
353.8Mvisits/mo
43.5Kvisits/mo
MoM change
▼ 8.2%
▲ 3.5%
▲ 2.1%
▼ 22.5%
6-month growth
-42.9%
-1.6%
+0.9%
-35.7%
Global rank web
#446
#7
#131
#791,007
Avg. last 3 months
104.9M
5.5B
357.9M
55.6K
Bounce rate lower is better
33%
30%
38%
39%
Pages / visit
3.6
4.3
3.4
1.8
Visit duration
4m 18s
6m 35s
5m 33s
22s
Traffic sources
● Direct 94% · ● Referral 4%
● Direct 95% · ● Referral 3%
● Direct 95% · ● Referral 4%
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Perplexity AIChatGPTDeepSeekMostlyAI
01.5B2.9B4.4B5.8BPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6BDeepSeek · 345.7MDeepSeek · 328.9MDeepSeek · 298.3MDeepSeek · 273.2MDeepSeek · 350.8MDeepSeek · 411.2MDeepSeek · 430.4MDeepSeek · 373.5MDeepSeek · 346.4MDeepSeek · 353.8MMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5K10K100K1M10M100M1B10BPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6BDeepSeek · 345.7MDeepSeek · 328.9MDeepSeek · 298.3MDeepSeek · 273.2MDeepSeek · 350.8MDeepSeek · 411.2MDeepSeek · 430.4MDeepSeek · 373.5MDeepSeek · 346.4MDeepSeek · 353.8MMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Free
Starting price
$20per month · free tier available
$8per month · free tier available
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Free
Free tier
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Free trial
–
–
–
–
API access
–
–
–
Plans
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Free FreeGo $8/moPlus $20/moPro 5x $100/mo+1 more
deepseek-flash Customdeepseek-v4-pro Custom
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Capabilities input → output
Input
CodeDocumentsImagesText
AudioTextImagesDocumentsCode
TextImagesCode
TextData
Output
CodeText
TextImagesCodeAudio
TextCode
Data
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Advanced
Categories
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+13 more
Chatbots & CompanionsDevelopment & CodeEducation & LearningImage Editing+27 more
Chatbots & CompanionsDevelopment & CodeEducation & LearningWriting & Content+10 more
Development & CodeResearch & AnalyticsAI Developer ToolsAI For Data Analytics
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
10
19
9
0
Chatbots
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Research
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Summarizing
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Writing
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Search engine
–
–
Coding
–
–
Translations
–
–
Homework assistance
–
–
AI search
–
–
–
Large language models
–
–
–
Blogging
–
–
–
Copywriting
–
–
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Document summarization
–
–
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Email writing
–
–
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Essay writing
–
–
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Grammar checking
–
–
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Image generation
–
–
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Image to text
–
–
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Research papers
–
–
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Code documentation
–
–
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Debugging
–
–
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Image editing
–
–
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Image to image
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–
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Literature reviews
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–
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Math
–
–
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Refactoring
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–
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Community on aitoolstime
Rating
no ratings yet
★ 4.34 ratings
no ratings yet
no ratings yet
Upvotes
▲ 3
▲ 17
▲ 3
▲ 0
Saves
0
4
0
0
Reviews
0
4
0
0
Prompts
1
17
0
0
Verified listing
–
–
–
–

Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.