Haystack vs OpenAI Codex CLI vs AutoGen vs Pipecat

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

Your tool
Haystack
vs
Competitor 1
OpenAI Codex CLI
Competitor 2
AutoGen
Competitor 3
Pipecat
Compare
4 tools · best value per row highlighted
Your tool Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Competitor OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
Competitor AutoGen
microsoft.github.io
AutoGen is an open-source framework from Microsoft for building AI agents and multi-agent applications.
Competitor Pipecat
pipecat.ai
Pipecat is an open-source Python framework for building voice and multimodal AI agents that talk in real time.
Traffic estimated monthly website traffic
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Bounce rate lower is better
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Pricing
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Free tier
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Free trial
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API access
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Plans
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GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
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Open source Free
Capabilities input → output
Input
CodeDocuments
CodeImagesText
CodeText
AudioTextVideo
Output
Apps
Code
AppsCode
AudioText
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
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5
9
Developer tools
Agent creation
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Agents
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LLM development
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Agent collaboration
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Coding
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Voice agents
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Voice
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Voice assistance
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Agent memory
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Agent testing
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Call agents
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Community on aitoolstime
Rating
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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.