OpenAI Codex CLI vs Haystack vs Weaviate vs Gemini 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
Haystack
Competitor 2
Weaviate
Competitor 3
Gemini 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 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 Weaviate
weaviate.io
Search that understands meaning
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Competitor Gemini CLI
github.com
It can query and edit large codebases, generate new apps from PDFs, images, or sketches using multimodal input, and debug problems when you describe them in plain language.
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Traffic estimated monthly website traffic
Monthly visits
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154.2Kvisits/mo
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MoM change
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▼ 11.8%
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6-month growth
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-7.0%
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Global rank web
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#293,589
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Avg. last 3 months
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155.7K
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Bounce rate lower is better
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41%
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Pages / visit
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1.9
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Visit duration
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50s
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Traffic sources
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● Direct 82% · ● Referral 18%
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OpenAI Codex CLIHaystackWeaviateGemini CLI
056.5K113K169.5K226KWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2K100K1MWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Paid
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Freemium
Free
Starting price
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$45per month · free tier available
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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Free FreeFlex $45/moPremium $0
Free (personal Google account) Free
Capabilities input → output
Input
CodeImagesText
CodeDocuments
DataImagesText
CodeDocumentsImagesText
Output
Code
Apps
Data
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
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5
6
4
Developer tools
Coding
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LLM development
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Agent creation
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Agents
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Vector databases
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Databases
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APIs
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Agent memory
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Code analysis
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Development
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Information retrieval
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Community on aitoolstime
Rating
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.