GitHub Copilot vs OpenAI Codex CLI vs Stack AI

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

Your tool
GitHub Copilot
vs
Competitor 1
OpenAI Codex CLI
Competitor 2
Stack AI
Competitor 3
Suggested competitors for GitHub Copilot: Cursor90% Windsurf88% CodeRabbit85% Sourcegraph Cody82% Continue82% Claude Code82% Tabnine80% OpenAI Codex80%
Compare
3 tools · best value per row highlighted
Your tool GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
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
Traffic estimated monthly website traffic
Monthly visits
637.9Mvisits/mo
—
6.3Kvisits/mo
MoM change
▲ 3.7%
—
▼ 57.9%
6-month growth
+19.3%
—
-93.7%
Global rank web
#49
—
#1,700,092
Avg. last 3 months
629.7M
—
13.9K
Bounce rate lower is better
36%
—
39%
Pages / visit
5.9
—
1.8
Visit duration
6m 26s
—
14s
Traffic sources
● Direct 83% · ● Referral 15%
—
—
GitHub CopilotOpenAI Codex CLIStack AI
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 · 637.9MStack 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 · 6.3K1K10K100K1M10M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MStack 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 · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Starting price
$4per month · free tier available
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Free tier
Free tier
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Free trial
–
API access
–
–
Plans
Free FreeTeam $4/moEnterprise $21/mo
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
—
Capabilities input → output
Input
CodeText
CodeImagesText
DataDocumentsText
Output
Code
Code
Apps
Skill level
Intermediate
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
2
7
Coding
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Agents
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No-code
–
–
Workflows
–
–
Agent creation
–
–
Business automation
–
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Code reviews
–
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Process automation
–
–
Agent management
–
–
Developer tools
–
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Finance workflow automation
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–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
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.