OpenCode vs 120.dev vs OpenAI Codex CLI 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
120.dev
Competitor 2
OpenAI Codex CLI
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 120.dev
120.dev
A researcher needs to compare how four different language models interpret the same dataset
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
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
Traffic estimated monthly website traffic
Monthly visits
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6.7Kvisits/mo
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35.3Kvisits/mo
MoM change
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▼ 8.1%
6-month growth
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—
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-40.2%
Global rank web
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#3,901,894
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#929,571
Avg. last 3 months
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2.2K
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41.1K
Bounce rate lower is better
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100%
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41%
Pages / visit
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1.0
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1.7
Visit duration
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27s
Traffic sources
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OpenCode120.devOpenAI Codex CLITheia IDE
014.8K29.5K44.3K59.1K120.dev · 6.7KTheia IDE · 54.7KTheia IDE · 58.4KTheia IDE · 59.1KTheia IDE · 49.4KTheia IDE · 47.5KTheia IDE · 49.5KTheia IDE · 38.4KTheia IDE · 35.3K1K10K100K120.dev · 6.7KTheia 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
Freemium
Paid
Free
Starting price
Free
$78per month · free tier available
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Free
Free tier
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Free trial
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API access
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Plans
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Free FreePro (120 AI Chat) $78/one-time
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
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Capabilities input → output
Input
CodeText
Text
CodeImagesText
CodeText
Output
Code
Text
Code
Code
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Chatbots & CompanionsAI Chatbot
Development & CodeAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
4
4
5
Coding
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Developer tools
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Agents
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Development
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Chatbots
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Model comparison
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Chatting
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LLM comparison
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Agent creation
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Local AI
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Self hosted
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Terminal
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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
▲ 0
▲ 1
▲ 0
▲ 0
Saves
0
0
0
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.