OpenAI Codex CLI vs Gemini CLI vs Aider vs GitHub Copilot

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
Gemini CLI
Competitor 2
Aider
Competitor 3
GitHub Copilot
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 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
Competitor Aider
aider.chat
AI pair programming in your terminal
Make main Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
317.9Kvisits/mo
637.9Mvisits/mo
MoM change
—
—
▼ 15.9%
▲ 3.7%
6-month growth
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-12.7%
+19.3%
Global rank web
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#140,509
#49
Avg. last 3 months
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—
378.5K
629.7M
Bounce rate lower is better
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48%
36%
Pages / visit
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2.0
5.9
Visit duration
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55s
6m 26s
Traffic sources
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● Direct 83% · ● Referral 16%
● Direct 83% · ● Referral 15%
OpenAI Codex CLIGemini CLIAiderGitHub Copilot
0159.5M318.9M478.4M637.9MAider · 293.8KAider · 277.7KAider · 314.6KAider · 289.1KAider · 364.1KAider · 402KAider · 478.7KAider · 439.5KAider · 378KAider · 317.9KGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9M100K1M10M100M1BAider · 293.8KAider · 277.7KAider · 314.6KAider · 289.1KAider · 364.1KAider · 402KAider · 478.7KAider · 439.5KAider · 378KAider · 317.9KGitHub 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
Paid
Free
Free
Freemium
Starting price
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Free
Free
$4per month · free tier available
Free tier
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Free trial
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API access
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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 (personal Google account) Free
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Free FreeTeam $4/moEnterprise $21/mo
Capabilities input → output
Input
TextImagesCode
CodeTextImagesDocuments
Web pagesTextImagesCodeAudio
CodeText
Output
Code
Code
Code
Code
Skill level
Advanced
Advanced
Advanced
Intermediate
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
2
4
8
4
Coding
Developer tools
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Development
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Agents
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Code reviews
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Code testing
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Git commands
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Terminal
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Agent management
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Code analysis
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Debugging
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Refactoring
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Terminal commands management
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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Saves
0
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0
Reviews
0
0
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0
Prompts
0
0
0
2
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.