OpenAI Codex CLI vs GitHub Copilot vs OpenCode vs StudyBuddy

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
GitHub Copilot
Competitor 2
OpenCode
Competitor 3
StudyBuddy
Compare
4 tools · best value per row highlighted
Your tool OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
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.
Make main Remove
Competitor StudyBuddy
studybuddy.gg
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
637.9Mvisits/mo
—
18.5Kvisits/mo
MoM change
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▲ 3.7%
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▼ 17.4%
6-month growth
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+19.3%
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+32.2%
Global rank web
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#49
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#1,296,631
Avg. last 3 months
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629.7M
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22.6K
Bounce rate lower is better
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36%
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38%
Pages / visit
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5.9
—
1.7
Visit duration
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6m 26s
—
8s
Traffic sources
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● Direct 83% · ● Referral 15%
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—
OpenAI Codex CLIGitHub CopilotOpenCodeStudyBuddy
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 · 637.9MStudyBuddy · 19.9KStudyBuddy · 22.4KStudyBuddy · 23.5KStudyBuddy · 19.5KStudyBuddy · 14KStudyBuddy · 15.4KStudyBuddy · 19.3KStudyBuddy · 27.1KStudyBuddy · 22.3KStudyBuddy · 18.5K10K100K1M10M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MStudyBuddy · 19.9KStudyBuddy · 22.4KStudyBuddy · 23.5KStudyBuddy · 19.5KStudyBuddy · 14KStudyBuddy · 15.4KStudyBuddy · 19.3KStudyBuddy · 27.1KStudyBuddy · 22.3KStudyBuddy · 18.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Paid
Freemium
Free
Paid
Starting price
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$4per month · free tier available
Free
$5.99per month
Free tier
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Free trial
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API access
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–
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Plans
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
Free FreeTeam $4/moEnterprise $21/mo
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Weekly Trial $0.99Weekly Subscription $5.99/mo
Capabilities input → output
Input
CodeImagesText
CodeText
CodeText
ImagesText
Output
Code
Code
Code
Text
Skill level
Advanced
Intermediate
Advanced
Beginner-friendly
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Education & LearningAI Homework Helper
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
9
6
5
Coding
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Agents
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Developer tools
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Terminal
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Chrome extensions
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Code autocompletion
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Homework assistance
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Study assistance
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Code reviews
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Coding in VS Code
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Math problems
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Vs code
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Agent management
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Debugging
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Development
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Local AI
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Self hosted
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Tutoring
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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.