GitHub Copilot vs Constella vs OpenAI Codex CLI 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
Constella
Competitor 2
OpenAI Codex CLI
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 Constella
constella.app
Opening Constella drops you into a system that ditches the usual file cabinet metaphor entirely
Make main 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 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
7.4Kvisits/mo
—
204.3Mvisits/mo
MoM change
▲ 3.7%
▼ 2.5%
—
▲ 3.6%
6-month growth
+19.3%
+67.1%
—
+0.3%
Global rank web
#49
#1,944,958
—
#212
Avg. last 3 months
629.7M
9.2K
—
197.3M
Bounce rate lower is better
36%
35%
—
58%
Pages / visit
5.9
5.0
—
3.0
Visit duration
6m 26s
1m 48s
—
2m 31s
Traffic sources
● Direct 83% · ● Referral 15%
—
—
● Direct 81% · ● Referral 17%
GitHub CopilotConstellaOpenAI Codex CLIOpenAI 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 · 637.9MConstella · 21.7KConstella · 9.6KConstella · 4.5KConstella · 3.7KConstella · 13.9KConstella · 12.4KConstella · 7.6KConstella · 7.4KOpenAI 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 · 637.9MConstella · 21.7KConstella · 9.6KConstella · 4.5KConstella · 3.7KConstella · 13.9KConstella · 12.4KConstella · 7.6KConstella · 7.4KOpenAI 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
Paid
Freemium
Starting price
$4per month · free tier available
$5.99per month · free tier available
—
$20per month · free tier available
Free tier
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Free trial
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–
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API access
–
–
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Plans
Free FreeTeam $4/moEnterprise $21/mo
Free FreeConstella Beta $5.99/yr
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
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Capabilities input → output
Input
CodeText
DocumentsTextWeb pages
CodeImagesText
CodeText
Output
Code
Text
Code
Code
Skill level
Intermediate
Intermediate
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Education & LearningAI Knowledge Management
Development & CodeAI Coding Assistant
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
5
4
9
Coding
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Agents
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Terminal
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Code reviews
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Debugging
–
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Code autocompletion
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–
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Coding in VS Code
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–
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GitHub automation
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–
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GitHub pull requests
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–
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Knowledge bases
–
–
–
Knowledge exploration
–
–
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Research
–
–
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Vs code
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–
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Agent management
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–
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Code documentation
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–
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Developer tools
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Development
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Digital information management
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–
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Note taking
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–
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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
2
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.