GitHub Copilot vs Replit vs Stack AI vs OpenAI Codex

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

Your tool
GitHub Copilot
vs
Competitor 1
Replit
Competitor 2
Stack AI
Competitor 3
OpenAI Codex
Compare
4 tools · best value per row highlighted
Your tool GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Remove
Competitor Replit
replit.com
Code, run, and deploy from your browser
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
637.9Mvisits/mo
11.9Mvisits/mo
6.3Kvisits/mo
204.3Mvisits/mo
MoM change
▲ 3.7%
▼ 9.4%
▼ 57.9%
▲ 3.6%
6-month growth
+19.3%
-7.3%
-93.7%
+0.3%
Global rank web
#49
#3,961
#1,700,092
#212
Avg. last 3 months
629.7M
12.6M
13.9K
197.3M
Bounce rate lower is better
36%
41%
39%
58%
Pages / visit
5.9
5.2
1.8
3.0
Visit duration
6m 26s
6m 40s
14s
2m 31s
Traffic sources
● Direct 83% · ● Referral 15%
● Direct 89% · ● Referral 8%
—
● Direct 81% · ● Referral 17%
GitHub CopilotReplitStack AIOpenAI Codex
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 · 637.9MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9MStack 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 · 6.3KOpenAI 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 · 204.3M1K10K100K1M10M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9MStack 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 · 6.3KOpenAI 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 · 204.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$4per month · free tier available
$20per month
Free tier
$20per month · free tier available
Free tier
–
Free trial
–
–
API access
–
–
–
Plans
Free FreeTeam $4/moEnterprise $21/mo
Core $20/moPro $100/moEnterprise Custom
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—
Capabilities input → output
Input
CodeText
Text
DataDocumentsText
CodeText
Output
Code
AppsCode
Apps
Code
Skill level
Intermediate
Intermediate
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI App BuilderAI Coding AssistantAI Website Builder
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
5
7
9
Coding
–
Agents
–
Debugging
–
Code reviews
–
–
Development
–
–
Terminal
–
–
Code autocompletion
–
–
–
No-code
–
–
–
Workflows
–
–
–
Agent creation
–
–
–
Business automation
–
–
–
Coding in VS Code
–
–
–
GitHub automation
–
–
–
GitHub pull requests
–
–
–
Process automation
–
–
–
Vs code
–
–
–
Website building
–
–
–
Agent management
–
–
–
Backend development
–
–
–
Code documentation
–
–
–
Finance workflow automation
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 2
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
2
0
0
0
Verified listing
–
–
–
–

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.