OpenCode vs Haystack vs Gemini Code Assist vs Theia IDE

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

Your tool
OpenCode
vs
Competitor 1
Haystack
Competitor 2
Gemini Code Assist
Competitor 3
TITheia IDE
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.
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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 Gemini Code Assist
codeassist.google
It provides a chat interface that is aware of the code in the open files, automatic completions as you type, and generation or transformation of whole functions and files on demand.
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Competitor TITheia IDE
theia-ide.org
An open-source IDE that puts AI at the center while giving you complete control over how it works
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Traffic estimated monthly website traffic
Monthly visits
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35.3Kvisits/mo
MoM change
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▼ 8.1%
6-month growth
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-40.2%
Global rank web
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#929,571
Avg. last 3 months
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41.1K
Bounce rate lower is better
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41%
Pages / visit
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1.7
Visit duration
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27s
Traffic sources
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OpenCodeHaystackGemini Code AssistTheia IDE
014.8K29.5K44.3K59.1KTheia IDE · 54.7KTheia IDE · 58.4KTheia IDE · 59.1KTheia IDE · 49.4KTheia IDE · 47.5KTheia IDE · 49.5KTheia IDE · 38.4KTheia IDE · 35.3K10K100KTheia IDE · 54.7KTheia IDE · 58.4KTheia IDE · 59.1KTheia IDE · 49.4KTheia IDE · 47.5KTheia IDE · 49.5KTheia IDE · 38.4KTheia IDE · 35.3KDec '25Jan '26FebMarAprMayJunJul
Pricing
Model
Free
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Freemium
Free
Starting price
Free
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$19per month · free tier available
Free
Free tier
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Free trial
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API access
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Plans
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Individuals FreeStandard $19/moEnterprise $45/mo
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Capabilities input → output
Input
CodeText
CodeDocuments
CodeText
CodeText
Output
Code
Apps
Code
Code
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
7
6
5
Developer tools
Coding
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Agents
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Agent creation
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Development
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Self hosted
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LLM development
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RAG
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Code autocompletion
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Code reviews
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Agent memory
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Local AI
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MCP
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Vs code
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
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.