ChatGPT vs LightPDF vs Smallpdf AI PDF vs Grok

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

Your tool
ChatGPT
vs
Competitor 1
LightPDF
Competitor 2
Smallpdf AI PDF
Competitor 3
Grok
Compare
4 tools · best value per row highlighted
Your tool ChatGPT
chatgpt.com
Your AI assistant for everything
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Competitor 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
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Competitor Smallpdf AI PDF
smallpdf.com
Smallpdf AI PDF, also called Chat with PDF, lets you upload a document and talk to it.
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Competitor Grok
grok.x.ai
AI with attitude and real-time knowledge
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Traffic estimated monthly website traffic
Monthly visits
5.6Bvisits/mo
1.8Mvisits/mo
—
42.9Kvisits/mo
MoM change
▲ 3.5%
▲ 1.0%
—
▼ 58.1%
6-month growth
-1.6%
-4.4%
—
-75.4%
Global rank web
#7
#34,433
—
—
Avg. last 3 months
5.5B
1.7M
—
99.3K
Bounce rate lower is better
30%
51%
—
65%
Pages / visit
4.3
2.3
—
1.6
Visit duration
6m 35s
1m 31s
—
31s
Traffic sources
● Direct 95% · ● Referral 3%
● Direct 88% · ● Referral 10%
—
● Direct 98% · ● Referral 2%
ChatGPTLightPDFSmallpdf AI PDFGrok
01.5B2.9B4.4B5.8BChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6BLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MGrok · 586KGrok · 355KGrok · 300.5KGrok · 130.8KGrok · 174KGrok · 120.9KGrok · 185.2KGrok · 152.9KGrok · 102.3KGrok · 42.9K10K100K1M10M100M1B10BChatGPT · 5.8BChatGPT · 5.5BChatGPT · 5.7BChatGPT · 5.4BChatGPT · 5.7BChatGPT · 5.5BChatGPT · 5.6BChatGPT · 5.4BChatGPT · 5.5BChatGPT · 5.6BLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MGrok · 586KGrok · 355KGrok · 300.5KGrok · 130.8KGrok · 174KGrok · 120.9KGrok · 185.2KGrok · 152.9KGrok · 102.3KGrok · 42.9KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$8per month · free tier available
$1.33per month · free tier available
€6per month · free tier available
$8per month · free tier available
Free tier
Free trial
–
–
API access
–
–
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Plans
Free FreeGo $8/moPlus $20/moPro 5x $100/mo+1 more
Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Pro €7.50/moTeam (2-100 users) €6/mo
Free FreeX Premium $8/moSuperGrok Lite $10/moX Premium+ $40/mo+3 more
Capabilities input → output
Input
AudioTextImagesDocumentsCode
Web pagesDocuments
TextDocuments
ImagesTextDocumentsCodeAudio
Output
TextImagesCodeAudio
Text
Text
VideoTextImagesCodeAudio
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Chatbots & CompanionsDevelopment & CodeEducation & LearningImage Editing+27 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Chatbots & CompanionsDevelopment & CodeImage GenerationAI API+4 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
19
9
8
9
Summarizing
–
Chatbots
–
–
PDF analysis
–
–
Document summarization
–
–
PDFs
–
–
Document data extraction
–
–
Coding
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–
Image generation
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–
Research
–
–
Data extraction
–
–
–
Document chat
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–
–
APIs
–
–
–
Blogging
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–
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Chatting
–
–
–
Copywriting
–
–
–
Email writing
–
–
–
Essay writing
–
–
–
Grammar checking
–
–
–
Image to text
–
–
–
Interactive PDF processing
–
–
–
Large language models
–
–
–
OCR
–
–
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PDF summaries
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–
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Search engine
–
–
–
Text extraction
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–
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Translations
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–
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Web search
–
–
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Writing
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–
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Code documentation
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–
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Debugging
–
–
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Community on aitoolstime
Rating
★ 4.34 ratings
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 17
▲ 0
▲ 0
▲ 1
Saves
4
0
0
0
Reviews
4
0
0
0
Prompts
17
0
0
0
Verified listing
–
–
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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.