OpenAI Codex CLI vs devlo vs Haystack vs GitHub Copilot CLI

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
devlo
Competitor 2
Haystack
Competitor 3
GitHub Copilot CLI
Compare
4 tools · best value per row highlighted
Your tool OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
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Competitor devlo
devlo.ai
Engineering teams get a browser-based system that handles code from multiple angles
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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.
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Competitor GitHub Copilot CLI
github.com
It reads, writes and runs code, works directly with your issues and pull requests, and carries a task from planning to merged code.
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Traffic estimated monthly website traffic
Monthly visits
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MoM change
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▼ 70.3%
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6-month growth
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Global rank web
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#8,880,689
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Avg. last 3 months
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537
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Bounce rate lower is better
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0%
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Pages / visit
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Visit duration
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Traffic sources
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OpenAI Codex CLIdevloHaystackGitHub Copilot CLI
02K3.9K5.9K7.9Kdevlo · 7.9Kdevlo · 5.4Kdevlo · 1.6K1K10Kdevlo · 7.9Kdevlo · 5.4Kdevlo · 1.6KDec '25Jan '26Feb
Pricing
Model
Paid
Freemium
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Free
Starting price
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$19per month · free tier available
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Free
Free tier
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Free trial
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API access
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Plans
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
CodeImagesText
CodeText
CodeDocuments
CodeText
Output
Code
AppsCode
Apps
Code
Skill level
Advanced
Advanced
Advanced
Intermediate
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI App Builder+2 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
2
11
5
4
Coding
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Agents
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Developer tools
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Agent creation
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Code reviews
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GitHub pull requests
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LLM development
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Teams performance analytics
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Development
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GitHub
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Jira tickets
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Agent memory
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Code quality
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Frontend development
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GitHub management
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
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Upvotes
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Saves
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Reviews
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Prompts
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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.