OpenAI Codex vs Stacks vs GitHub Copilot vs Kilo Code

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

Your tool
OpenAI Codex
vs
Competitor 1
Stacks
Competitor 2
GitHub Copilot
Competitor 3
Kilo Code
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 Stacks
betterstacks.com
Stacks is a personal AI workspace that gathers what you find online into one searchable place.
Make main Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Competitor Kilo Code
kilocode.ai
Kilo Code is an open source AI agent Visual Studio (VS) Code extension that focuses on enhancing the efficiency of coding. The tool can generate code, automate tasks, and offer practical suggestions.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
6.3Kvisits/mo
637.9Mvisits/mo
1.9Kvisits/mo
MoM change
▲ 3.6%
▼ 8.4%
▲ 3.7%
▼ 42.3%
6-month growth
+0.3%
-50.8%
+19.3%
-94.4%
Global rank web
#212
#3,182,249
#49
#4,668,091
Avg. last 3 months
197.3M
6.1K
629.7M
10.5K
Bounce rate lower is better
58%
41%
36%
34%
Pages / visit
3.0
1.7
5.9
2.4
Visit duration
2m 31s
6s
6m 26s
19s
Traffic sources
● Direct 81% · ● Referral 17%
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● Direct 83% · ● Referral 15%
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OpenAI CodexStacksGitHub CopilotKilo Code
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 · 204.3MStacks · 7KStacks · 12.2KStacks · 12.8KStacks · 8.7KStacks · 5.7KStacks · 5.1KStacks · 6.8KStacks · 6.3KGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MKilo Code · 744.7KKilo Code · 164KKilo Code · 48.6KKilo Code · 16KKilo Code · 33.5KKilo Code · 14.4KKilo Code · 10.5KKilo Code · 26.4KKilo Code · 3.2KKilo Code · 1.9K1K10K100K1M10M100M1BOpenAI 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 · 204.3MStacks · 7KStacks · 12.2KStacks · 12.8KStacks · 8.7KStacks · 5.7KStacks · 5.1KStacks · 6.8KStacks · 6.3KGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MKilo Code · 744.7KKilo Code · 164KKilo Code · 48.6KKilo Code · 16KKilo Code · 33.5KKilo Code · 14.4KKilo Code · 10.5KKilo Code · 26.4KKilo Code · 3.2KKilo Code · 1.9KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
$20per month · free tier available
$9per month
$4per month · free tier available
$20per month · free tier available
Free tier
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Free trial
–
–
–
API access
–
–
–
–
Plans
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Be Productive $89/yrBe Collaborative $199/yrBe Creative $349/yr
Free FreeTeam $4/moEnterprise $21/mo
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Capabilities input → output
Input
CodeText
DocumentsTextWeb pages
CodeText
CodeText
Output
Code
Text
Code
Code
Skill level
Advanced
Beginner-friendly
Intermediate
Advanced
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Education & LearningProductivity & OfficeAI FilesAI Knowledge Management
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
6
9
5
Coding
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Agents
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Coding in VS Code
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Code reviews
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Vs code
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Debugging
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Development
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Terminal
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Bookmarking
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–
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Code autocompletion
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–
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Digital information management
–
–
–
Knowledge bases
–
–
–
Chrome extensions
–
–
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GitHub automation
–
–
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GitHub pull requests
–
–
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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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Knowledge exploration
–
–
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Note taking
–
–
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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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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.