OpenAI Codex vs GitHub Copilot vs Haystack 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
GitHub Copilot
Competitor 2
Haystack
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 GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
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Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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.
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Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
637.9Mvisits/mo
—
1.9Kvisits/mo
MoM change
▲ 3.6%
▲ 3.7%
—
▼ 42.3%
6-month growth
+0.3%
+19.3%
—
-94.4%
Global rank web
#212
#49
—
#4,668,091
Avg. last 3 months
197.3M
629.7M
—
10.5K
Bounce rate lower is better
58%
36%
—
34%
Pages / visit
3.0
5.9
—
2.4
Visit duration
2m 31s
6m 26s
—
19s
Traffic sources
● Direct 81% · ● Referral 17%
● Direct 83% · ● Referral 15%
—
—
OpenAI CodexGitHub CopilotHaystackKilo 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 · 204.3MGitHub 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 · 204.3MGitHub 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
Freemium
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Freemium
Starting price
$20per month · free tier available
$4per month · free tier available
—
$20per month · free tier available
Free tier
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Free trial
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–
–
API access
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–
–
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Plans
—
Free FreeTeam $4/moEnterprise $21/mo
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Capabilities input → output
Input
CodeText
CodeText
CodeDocuments
CodeText
Output
Code
Code
Apps
Code
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
4
4
5
4
Coding
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Agents
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Code reviews
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Agent creation
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–
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LLM development
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–
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Coding in VS Code
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–
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Developer tools
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–
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Agent management
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–
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Agent memory
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–
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Code analysis
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–
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Code documentation
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–
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Development
–
–
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Vs code
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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
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
2
0
0
Verified listing
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–
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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.