Theia IDE vs OpenCode vs opcode vs OpenAI Codex CLI

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

Your tool
TITheia IDE
vs
Competitor 1
OpenCode
Competitor 2
opcode
Competitor 3
OpenAI Codex CLI
Compare
4 tools · best value per row highlighted
Your tool TITheia IDE
theia-ide.org
An open-source IDE that puts AI at the center while giving you complete control over how it works
Remove
Competitor 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.
Make main Remove
Competitor opcode
opcode.sh
opcode is a free, open-source desktop application that gives Anthropic's command-line coding agent a graphical interface.
Make main Remove
Competitor OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
35.3Kvisits/mo
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MoM change
▼ 8.1%
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6-month growth
-40.2%
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Global rank web
#929,571
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Avg. last 3 months
41.1K
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Bounce rate lower is better
41%
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Pages / visit
1.7
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Visit duration
27s
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Traffic sources
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Theia IDEOpenCodeopcodeOpenAI Codex CLI
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
Paid
Starting price
Free
Free
Free
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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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Open source Free
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
Capabilities input → output
Input
CodeText
CodeText
CodeText
CodeImagesText
Output
Code
Code
Code
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
3
2
2
Coding
Developer tools
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Development
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Agent creation
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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
0
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0
Reviews
0
0
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Prompts
0
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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.