opcode vs Gemini Code Assist 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
opcode
vs
Competitor 1
Gemini Code Assist
Competitor 2
OpenAI Codex CLI
Competitor 3
TITheia IDE
Compare
4 tools · best value per row highlighted
Your tool opcode
opcode.sh
opcode is a free, open-source desktop application that gives Anthropic's command-line coding agent a graphical interface.
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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 OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
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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
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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opcodeGemini Code AssistOpenAI Codex CLITheia 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
Freemium
Paid
Free
Starting price
Free
$19per 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
Open source Free
Individuals FreeStandard $19/moEnterprise $45/mo
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
CodeText
CodeImagesText
CodeText
Output
Code
Code
Code
Code
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
6
6
4
5
Coding
Developer tools
Agents
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Agent creation
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MCP
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Code autocompletion
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Code reviews
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Development
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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
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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.