GitHub Copilot vs Perplexity AI vs ReadDocs vs OpenAI Codex

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

Your tool
GitHub Copilot
vs
Competitor 1
Perplexity AI
Competitor 2
ReadDocs
Competitor 3
OpenAI Codex
Compare
4 tools · best value per row highlighted
Your tool GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Remove
Competitor Perplexity AI
perplexity.ai
Search that gives answers instead of links
Make main Remove
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
Make main Remove
Competitor OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
637.9Mvisits/mo
95.2Mvisits/mo
744visits/mo
204.3Mvisits/mo
MoM change
▲ 3.7%
▼ 8.2%
▲ 141.6%
▲ 3.6%
6-month growth
+19.3%
-42.9%
—
+0.3%
Global rank web
#49
#446
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#212
Avg. last 3 months
629.7M
104.9M
384
197.3M
Bounce rate lower is better
36%
33%
39%
58%
Pages / visit
5.9
3.6
1.1
3.0
Visit duration
6m 26s
4m 18s
—
2m 31s
Traffic sources
● Direct 83% · ● Referral 15%
● Direct 94% · ● Referral 4%
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● Direct 81% · ● Referral 17%
GitHub CopilotPerplexity AIReadDocsOpenAI Codex
0159.5M318.9M478.4M637.9MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MPerplexity 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 · 744OpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3M1001K10K100K1M10M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MPerplexity 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 · 744OpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$4per month · free tier available
$20per month · free tier available
Free tier
$20per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreeTeam $4/moEnterprise $21/mo
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Free FreePro £9.99/moBusiness £29/mo
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Capabilities input → output
Input
CodeText
CodeDocumentsImagesText
DocumentsImagesText
CodeText
Output
Code
CodeText
Text
Code
Skill level
Intermediate
Beginner-friendly
Beginner-friendly
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+13 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
10
13
9
Coding
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Agents
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Document summarization
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Summarizing
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Code reviews
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Debugging
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Terminal
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AI search
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Code autocompletion
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Document chat
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Document q a
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Document summaries
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PDF summaries
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Research
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Search engine
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Chatbots
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Coding in VS Code
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GitHub automation
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GitHub pull requests
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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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Vs code
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Agent management
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Code documentation
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Development
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Homework assistance
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 3
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
2
1
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.