ChatGPT vs ReadDocs vs Perplexity AI vs LightPDF
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
ChatGPT
vs ChatGPT
Competitor 1
ReadDocs
ReadDocs
Competitor 2
Perplexity AI
Perplexity AI
Competitor 3
LightPDF
LightPDFCompare
4 tools · best value per row highlighted
Competitor
ReadDocs
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
LightPDF
LightPDF
lightpdf.com
LightPDF AI for Docs is an online tool that utilizes artificial intelligence to summarize and extract insights from uploaded PDF, Word, Excel, and PPT documents. With multi-platform availability and s
Traffic estimated monthly website traffic
Monthly visits
5.6Bvisits/mo
744visits/mo
95.2Mvisits/mo
1.8Mvisits/mo
MoM change
▲ 3.5%
▲ 141.6%
▼ 8.2%
▲ 1.0%
6-month growth
-1.6%
—
-42.9%
-4.4%
Global rank web
#7
—
#446
#34,433
Avg. last 3 months
5.5B
384
104.9M
1.7M
Bounce rate lower is better
30%
39%
33%
51%
Pages / visit
4.3
1.1
3.6
2.3
Visit duration
6m 35s
—
4m 18s
1m 31s
Traffic sources
● Direct 95% · ● Referral 3%
—
● Direct 94% · ● Referral 4%
● Direct 88% · ● Referral 10%
ChatGPTReadDocsPerplexity AILightPDF
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$8per month · free tier available
Free tier
$20per month · free tier available
$1.33per month · free tier available
Free tier
Free trial
–
–
–
API access
–
–
–
–
Plans
Free FreeGo $8/moPlus $20/moPro 5x $100/mo+1 more
Free FreePro £9.99/moBusiness £29/mo
—
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Capabilities input → output
Input
AudioTextImagesDocumentsCode
TextImagesDocuments
CodeDocumentsImagesText
Web pagesDocuments
Output
TextImagesCodeAudio
Text
TextCode
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
19
13
10
9
Summarizing
Document summarization
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Chatbots
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PDF analysis
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Research
–
–
Search engine
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OCR
–
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Writing
–
–
AI search
–
–
–
Data extraction
–
–
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Document chat
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Document data extraction
–
–
–
Document q a
–
–
–
Document summaries
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–
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PDF summaries
–
–
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Blogging
–
–
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Coding
–
–
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Copywriting
–
–
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Email writing
–
–
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Essay writing
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–
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Grammar checking
–
–
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Image generation
–
–
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Image to text
–
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Interactive PDF processing
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Official documents q a
–
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PDFs
–
–
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Research papers
–
–
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Summaries
–
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Text extraction
–
–
–
Translations
–
–
–
Community on aitoolstime
Rating
4.34 ratings
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 17
▲ 0
▲ 3
▲ 0
Saves
4
0
0
0
Reviews
4
0
0
0
Prompts
17
0
1
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.