GitHub Copilot CLI vs OpenAI Codex CLI vs Stack AI vs Dify

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

Your tool
GitHub Copilot CLI
vs
Competitor 1
OpenAI Codex CLI
Competitor 2
Stack AI
Competitor 3
Dify
Compare
4 tools · best value per row highlighted
Your tool GitHub Copilot CLI
github.com
It reads, writes and runs code, works directly with your issues and pull requests, and carries a task from planning to merged code.
Remove
Competitor OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor Dify
dify.ai
AI apps without code
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
6.3Kvisits/mo
1Mvisits/mo
MoM change
—
—
▼ 57.9%
▼ 16.6%
6-month growth
—
—
-93.7%
-30.6%
Global rank web
—
—
#1,700,092
#39,510
Avg. last 3 months
—
—
13.9K
1.1M
Bounce rate lower is better
—
—
39%
41%
Pages / visit
—
—
1.8
4.4
Visit duration
—
—
14s
6m 40s
Traffic sources
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—
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● Direct 84% · ● Referral 15%
GitHub Copilot CLIOpenAI Codex CLIStack AIDify
0368.2K736.4K1.1M1.5MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1M1K10K100K1M10MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Paid
Freemium
Freemium
Starting price
Free
—
Free tier
$590per month · free tier available
Free tier
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Free trial
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–
–
API access
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Plans
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GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
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Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
Capabilities input → output
Input
CodeText
CodeImagesText
DataDocumentsText
DocumentsText
Output
Code
Code
Apps
Apps
Skill level
Intermediate
Advanced
Intermediate
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
2
5
9
Agents
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Developer tools
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Coding
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No-code
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Workflows
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Agent creation
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Chatbots
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–
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LLM development
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–
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Development
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–
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Finance workflow automation
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–
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GitHub management
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–
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Productivity
–
–
–
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
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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.