OpenAI Codex CLI vs Vapi

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
Vapi
Competitor 2
Competitor 3
Suggested competitors for OpenAI Codex CLI: Gemini CLI100% Qwen Code98% OpenCode97% Visual Studio Code95% JetBrains AI Assistant95% Kimi Code94% GitHub Copilot CLI94% Amp93%
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2 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 Vapi
vapi.ai
Vapi is a developer platform for building, testing and deploying voice AI agents that talk to customers on the phone.
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Traffic estimated monthly website traffic
Monthly visits
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6-month growth
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Global rank web
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Avg. last 3 months
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Bounce rate lower is better
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Pages / visit
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Pricing
Model
Paid
Freemium
Starting price
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$29per month
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
No Success Package FreeCore $29/moPro $999/moPremier Custom
Capabilities input → output
Input
CodeImagesText
AudioText
Output
Code
AppsAudio
Skill level
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Business & MarketingVoice & SpeechAI Call CenterAI Customer Service+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
2
7
Coding
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Voice agents
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Call agents
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Call center automation
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Customer calls
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Customer support
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Call answering
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Calls
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Developer tools
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Community on aitoolstime
Rating
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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.