OpenCode vs Glean vs GitBook vs OpenAI Codex

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

Your tool
OpenCode
vs
Competitor 1
Glean
Competitor 2
GitBook
Competitor 3
OpenAI Codex
Compare
4 tools · best value per row highlighted
Your tool 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.
Remove
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.
Make main Remove
Competitor GitBook
gitbook.com
GitBook is a documentation and knowledge platform for publishing product docs that work for both people and AI.
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
—
—
—
204.3Mvisits/mo
MoM change
—
—
—
▲ 3.6%
6-month growth
—
—
—
+0.3%
Global rank web
—
—
—
#212
Avg. last 3 months
—
—
—
197.3M
Bounce rate lower is better
—
—
—
58%
Pages / visit
—
—
—
3.0
Visit duration
—
—
—
2m 31s
Traffic sources
—
—
—
● Direct 81% · ● Referral 17%
OpenCodeGleanGitBookOpenAI Codex
066.6M133.2M199.7M266.3MOpenAI 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 · 204.3M100M1BOpenAI 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
Free
—
Freemium
Freemium
Starting price
Free
—
$65per month · free tier available
$20per month · free tier available
Free tier
–
Free trial
–
–
–
API access
–
–
Plans
—
—
Free FreeEssential $65/moUltimate $249/moEnterprise Custom
—
Capabilities input → output
Input
CodeText
DataDocumentsText
CodeText
CodeText
Output
Code
Text
DocumentsText
Code
Skill level
Advanced
Intermediate
Beginner-friendly
Advanced
Categories
Development & CodeAI Coding Assistant
Education & LearningProductivity & OfficeAI AgentAI Assistant+1 more
Development & CodeEducation & LearningAI Developer ToolsAI Knowledge Management
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
10
8
9
Agents
–
Coding
–
–
Knowledge
–
–
Knowledge bases
–
–
Code documentation
–
–
Developer tools
–
–
Development
–
–
Digital information management
–
–
AI search
–
–
–
Agent creation
–
–
–
Agent management
–
–
–
Business productivity
–
–
–
GitHub automation
–
–
–
GitHub pull requests
–
–
–
API docs
–
–
–
Code reviews
–
–
–
Customer support chatbot
–
–
–
Debugging
–
–
–
Document creation
–
–
–
Knowledge sourcing
–
–
–
Local AI
–
–
–
Model routing
–
–
–
Self hosted
–
–
–
Terminal
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

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.