Perplexity AI vs ReadDocs vs MostlyAI vs DeepSeek

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

Your tool
Perplexity AI
vs
Competitor 1
ReadDocs
Competitor 2
MostlyAI
Competitor 3
DeepSeek
Compare
4 tools · best value per row highlighted
Your tool Perplexity AI
perplexity.ai
Search that gives answers instead of links
Competitor ReadDocs
readdocs.co.uk
Upload a PDF contract and ReadDocs spits out a one-minute summary, bullet points, and answers to specific questions you ask
Competitor MostlyAI
mostly.ai
Competitor DeepSeek
deepseek.com
DeepSeek is an AI lab and chat assistant.
Traffic estimated monthly website traffic
Monthly visits
95.2Mvisits/mo
744visits/mo
43.5Kvisits/mo
353.8Mvisits/mo
MoM change
▼ 8.2%
▲ 141.6%
▼ 22.5%
▲ 2.1%
6-month growth
-42.9%
—
-35.7%
+0.9%
Global rank web
#446
—
#791,007
#131
Avg. last 3 months
104.9M
384
55.6K
357.9M
Bounce rate lower is better
33%
39%
39%
38%
Pages / visit
3.6
1.1
1.8
3.4
Visit duration
4m 18s
—
22s
5m 33s
Traffic sources
● Direct 94% · ● Referral 4%
—
—
● Direct 95% · ● Referral 4%
Perplexity AIReadDocsMostlyAIDeepSeek
0107.6M215.2M322.8M430.4MPerplexity 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 · 95.2MReadDocs · 101ReadDocs · 308ReadDocs · 744MostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KDeepSeek · 345.7MDeepSeek · 328.9MDeepSeek · 298.3MDeepSeek · 273.2MDeepSeek · 350.8MDeepSeek · 411.2MDeepSeek · 430.4MDeepSeek · 373.5MDeepSeek · 346.4MDeepSeek · 353.8M1001K10K100K1M10M100M1BPerplexity 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 · 95.2MReadDocs · 101ReadDocs · 308ReadDocs · 744MostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KDeepSeek · 345.7MDeepSeek · 328.9MDeepSeek · 298.3MDeepSeek · 273.2MDeepSeek · 350.8MDeepSeek · 411.2MDeepSeek · 430.4MDeepSeek · 373.5MDeepSeek · 346.4MDeepSeek · 353.8MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free
Freemium
Starting price
$20per month · free tier available
Free tier
Free
—
Free tier
–
Free trial
–
–
–
–
API access
–
–
–
Plans
—
Free FreePro £9.99/moBusiness £29/mo
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deepseek-flash Customdeepseek-v4-pro Custom
Capabilities input → output
Input
DocumentsImagesTextCode
DocumentsImagesText
DataText
TextImagesCode
Output
CodeText
Text
Data
CodeText
Skill level
Beginner-friendly
Beginner-friendly
Advanced
Beginner-friendly
Categories
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
10
13
6
9
Summarizing
–
Chatbots
–
–
Document summarization
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Research
–
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Homework assistance
–
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Writing
–
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AI search
–
–
–
Document chat
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–
–
Document q a
–
–
–
Document summaries
–
–
–
Large language models
–
–
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PDF summaries
–
–
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Search engine
–
–
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Synthetic data
–
–
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Coding
–
–
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Data analysis
–
–
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Interactive PDF processing
–
–
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OCR
–
–
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Official documents q a
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PDF analysis
–
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Research papers
–
–
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Summaries
–
–
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Translations
–
–
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Data anonymization
–
–
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Data privacy compliance
–
–
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Data science
–
–
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Developer tools
–
–
–
Literature reviews
–
–
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Math
–
–
–
Meeting summaries
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 3
▲ 0
▲ 0
▲ 3
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
1
0
0
0
Verified listing
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–
–
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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.