OpenCode vs GitHub Copilot CLI vs Theia IDE vs Functionize

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
TITheia IDE
Competitor 3
Functionize
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 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.
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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
Make main Remove
Competitor Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
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Traffic estimated monthly website traffic
Monthly visits
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35.3Kvisits/mo
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MoM change
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▼ 8.1%
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6-month growth
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-40.2%
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Global rank web
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#929,571
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Avg. last 3 months
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41.1K
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Bounce rate lower is better
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41%
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Pages / visit
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1.7
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Visit duration
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27s
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Traffic sources
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OpenCodeGitHub Copilot CLITheia IDEFunctionize
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
Free
Free
Freemium
Starting price
Free
Free
Free
$20per month · free tier available
Free tier
Free trial
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API access
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Plans
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Free FreeGrowth $20/moScale $100/moEnterprise Custom
Capabilities input → output
Input
CodeText
CodeText
CodeText
TextWeb pages
Output
Code
Code
Code
Data
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeAI Testing
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
5
5
7
Coding
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Agents
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Developer tools
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Development
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Test automation
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Testing
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GitHub pull requests
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Test creation
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Test generation
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Agent creation
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GitHub management
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Local AI
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Self hosted
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Test cases
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Vs code
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Website testing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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Saves
0
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0
Reviews
0
0
0
0
Prompts
0
0
0
0
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.