OpenCode vs Semantic Kernel vs Gemini CLI vs OpenAI Codex

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

Your tool
OpenCode
vs
Competitor 1
Semantic Kernel
Competitor 2
Gemini CLI
Competitor 3
OpenAI Codex
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 Semantic Kernel
learn.microsoft.com
Semantic Kernel is a lightweight, open-source development kit from Microsoft for building AI agents and adding AI models to existing C#, Python or Java codebases.
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Competitor 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.
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Competitor OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
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Traffic estimated monthly website traffic
Monthly visits
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204.3Mvisits/mo
MoM change
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▲ 3.6%
6-month growth
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+0.3%
Global rank web
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#212
Avg. last 3 months
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197.3M
Bounce rate lower is better
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58%
Pages / visit
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3.0
Visit duration
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2m 31s
Traffic sources
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● Direct 81% · ● Referral 17%
OpenCodeSemantic KernelGemini CLIOpenAI Codex
066.6M133.2M199.7M266.3MOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3M100M1BOpenAI Codex · 266.3MOpenAI Codex · 225MOpenAI Codex · 210.1MOpenAI Codex · 191.2MOpenAI Codex · 203.7MOpenAI Codex · 195.7MOpenAI Codex · 203.1MOpenAI Codex · 190.4MOpenAI Codex · 197.2MOpenAI Codex · 204.3MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
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Free
Freemium
Starting price
Free
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Free
$20per month · free tier available
Free tier
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Free trial
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API access
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Plans
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Free (personal Google account) Free
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Capabilities input → output
Input
CodeText
CodeText
CodeDocumentsImagesText
CodeText
Output
Code
Apps
Code
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Coding Assistant
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
5
6
9
Agents
Coding
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Developer tools
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Development
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Debugging
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Agent creation
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GitHub automation
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GitHub pull requests
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LLM development
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API integrations
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Code analysis
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Code documentation
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Code reviews
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Local AI
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Self hosted
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Terminal
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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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▲ 1
Saves
0
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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.