OpenAI Codex vs Question Base vs GitHub Copilot vs Gemini CLI

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

Your tool
OpenAI Codex
vs
Competitor 1
Question Base
Competitor 2
GitHub Copilot
Competitor 3
Gemini CLI
Compare
4 tools · best value per row highlighted
Your tool OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
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Competitor Question Base
questionbase.com
Question Base is an AI answer agent that lives in Slack and responds to employee questions using your company's documentation, wikis and past conversations.
Make main Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Competitor Gemini CLI
github.com
It can query and edit large codebases, generate new apps from PDFs, images, or sketches using multimodal input, and debug problems when you describe them in plain language.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
—
637.9Mvisits/mo
—
MoM change
▲ 3.6%
—
▲ 3.7%
—
6-month growth
+0.3%
—
+19.3%
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Global rank web
#212
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#49
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Avg. last 3 months
197.3M
—
629.7M
—
Bounce rate lower is better
58%
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36%
—
Pages / visit
3.0
—
5.9
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Visit duration
2m 31s
—
6m 26s
—
Traffic sources
● Direct 81% · ● Referral 17%
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● Direct 83% · ● Referral 15%
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OpenAI CodexQuestion BaseGitHub CopilotGemini CLI
0159.5M318.9M478.4M637.9MOpenAI 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 · 204.3MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9M100M1BOpenAI 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 · 204.3MGitHub 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 '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Free
Starting price
$20per month · free tier available
$5per month
$4per month · free tier available
Free
Free tier
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Free trial
–
–
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API access
–
–
–
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Plans
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Proof of Concept $1,000Annual Pro $6,000/yrEnterprise+ $20,000/yr
Free FreeTeam $4/moEnterprise $21/mo
Free (personal Google account) Free
Capabilities input → output
Input
CodeText
DocumentsText
CodeText
CodeDocumentsImagesText
Output
Code
Text
Code
Code
Skill level
Advanced
Intermediate
Intermediate
Advanced
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Education & LearningAI Knowledge Management
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
6
9
6
Agents
Coding
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Debugging
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Code reviews
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Development
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Terminal
–
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Code autocompletion
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–
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Knowledge bases
–
–
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Slack
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–
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Chatbots
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Coding in VS Code
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–
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GitHub automation
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–
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GitHub pull requests
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–
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Knowledge optimization
–
–
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Vs code
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–
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Agent management
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–
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Code analysis
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–
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Code documentation
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–
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Developer tools
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–
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Knowledge
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
2
0
Verified listing
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–
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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.