OpenCode vs GitHub Copilot CLI vs Haystack vs Semantic Kernel

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

Your tool
OpenCode
vs
Competitor 1
GitHub Copilot CLI
Competitor 2
Haystack
Competitor 3
Semantic Kernel
Compare
4 tools · best value per row highlighted
Your tool OpenCode
opencode.ai
OpenCode is an open-source AI coding agent that helps developers write code in the terminal, an IDE or a desktop app.
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.
Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Competitor Semantic Kernel
learn.microsoft.com
Semantic Kernel is a lightweight, open-source development kit from Microsoft for building AI agents and adding AI models to existing C#, Python or Java codebases.
Traffic estimated monthly website traffic
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Bounce rate lower is better
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Pricing
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Free
Free
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Starting price
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Free tier
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Free trial
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API access
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Capabilities input → output
Input
CodeText
CodeText
CodeDocuments
CodeText
Output
Code
Code
Apps
Apps
Skill level
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Advanced
Advanced
Categories
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
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Agents
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Developer tools
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Agent creation
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Coding
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LLM development
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Developer assistance
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Agent memory
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GitHub management
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Community on aitoolstime
Rating
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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.