Gemini CLI vs OpenCode vs Theia IDE vs Google Antigravity

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

Your tool
Gemini CLI
vs
Competitor 1
OpenCode
Competitor 2
TITheia IDE
Competitor 3
Google Antigravity
Compare
4 tools · best value per row highlighted
Your tool Gemini CLI
github.com
It can query and edit large codebases, generate new apps from PDFs, images, or sketches using multimodal input, and debug problems when you describe them in plain language.
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 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 Google Antigravity
antigravity.google
Google Antigravity assumes you already think in agent-driven workflows
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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35.3Kvisits/mo
14Mvisits/mo
MoM change
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▼ 8.1%
▼ 3.1%
6-month growth
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-40.2%
-31.9%
Global rank web
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#929,571
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Avg. last 3 months
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41.1K
15.4M
Bounce rate lower is better
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41%
48%
Pages / visit
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—
1.7
2.2
Visit duration
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27s
3m 35s
Traffic sources
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● Direct 58% · ● Referral 42%
Gemini CLIOpenCodeTheia IDEGoogle Antigravity
05.4M10.8M16.2M21.6MTheia IDE · 54.7KTheia IDE · 58.4KTheia IDE · 59.1KTheia IDE · 49.4KTheia IDE · 47.5KTheia IDE · 49.5KTheia IDE · 38.4KTheia IDE · 35.3KGoogle Antigravity · 12.1MGoogle Antigravity · 15.1MGoogle Antigravity · 15.9MGoogle Antigravity · 21.6MGoogle Antigravity · 20.5MGoogle Antigravity · 16.4MGoogle Antigravity · 21.5MGoogle Antigravity · 17.9MGoogle Antigravity · 14.4MGoogle Antigravity · 14M10K100K1M10M100MTheia IDE · 54.7KTheia IDE · 58.4KTheia IDE · 59.1KTheia IDE · 49.4KTheia IDE · 47.5KTheia IDE · 49.5KTheia IDE · 38.4KTheia IDE · 35.3KGoogle Antigravity · 12.1MGoogle Antigravity · 15.1MGoogle Antigravity · 15.9MGoogle Antigravity · 21.6MGoogle Antigravity · 20.5MGoogle Antigravity · 16.4MGoogle Antigravity · 21.5MGoogle Antigravity · 17.9MGoogle Antigravity · 14.4MGoogle Antigravity · 14MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Free
Free
Free
Starting price
Free
Free
Free
Free
Free tier
Free trial
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API access
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Plans
Free (personal Google account) Free
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Capabilities input → output
Input
CodeDocumentsImagesText
CodeText
CodeText
CodeText
Output
Code
Code
Code
AppsCode
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 3 shared · core   partial
Tasks covered
6
6
5
9
Coding
Developer tools
Development
Agents
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Agent creation
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Agent management
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Code autocompletion
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Terminal
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Code analysis
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Debugging
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Frontend development
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Local AI
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Self hosted
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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
▲ 0
▲ 0
▲ 1
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.