GitBook vs GitHub Copilot vs OpenCode vs Glean

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

Your tool
GitBook
vs
Competitor 1
GitHub Copilot
Competitor 2
OpenCode
Competitor 3
Glean
Compare
4 tools · best value per row highlighted
Your tool GitBook
gitbook.com
GitBook is a documentation and knowledge platform for publishing product docs that work for both people and AI.
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Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
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Competitor OpenCode
opencode.ai
OpenCode is an open-source AI coding agent that helps developers write code in the terminal, an IDE or a desktop app.
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Competitor Glean
glean.com
Glean is an enterprise AI platform that connects to company apps and data to provide search, an AI assistant and agents.
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Traffic estimated monthly website traffic
Monthly visits
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637.9Mvisits/mo
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MoM change
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▲ 3.7%
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6-month growth
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+19.3%
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Global rank web
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#49
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Avg. last 3 months
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629.7M
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Bounce rate lower is better
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36%
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Pages / visit
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5.9
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Visit duration
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6m 26s
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Traffic sources
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● Direct 83% · ● Referral 15%
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GitBookGitHub CopilotOpenCodeGlean
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 · 637.9M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Freemium
Free
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Starting price
$65per month · free tier available
$4per month · free tier available
Free
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Free tier
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Free trial
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API access
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Plans
Free FreeEssential $65/moUltimate $249/moEnterprise Custom
Free FreeTeam $4/moEnterprise $21/mo
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Capabilities input → output
Input
CodeText
CodeText
CodeText
DataDocumentsText
Output
DocumentsText
Code
Code
Text
Skill level
Beginner-friendly
Intermediate
Advanced
Intermediate
Categories
Development & CodeEducation & LearningAI Developer ToolsAI Knowledge Management
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Education & LearningProductivity & OfficeAI AgentAI Assistant+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
4
3
7
Coding
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Agents
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Knowledge
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Knowledge bases
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Agent management
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Developer tools
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Digital information management
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Agent creation
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Code reviews
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Development
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Knowledge sourcing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
2
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.