OpenCode vs Kilo Code vs MostlyAI 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
Kilo Code
Competitor 2
MostlyAI
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 Kilo Code
kilocode.ai
Kilo Code is an open source AI agent Visual Studio (VS) Code extension that focuses on enhancing the efficiency of coding. The tool can generate code, automate tasks, and offer practical suggestions.
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Competitor MostlyAI
mostly.ai
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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
—
1.9Kvisits/mo
43.5Kvisits/mo
204.3Mvisits/mo
MoM change
—
▼ 42.3%
▼ 22.5%
▲ 3.6%
6-month growth
—
-94.4%
-35.7%
+0.3%
Global rank web
—
#4,668,091
#791,007
#212
Avg. last 3 months
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10.5K
55.6K
197.3M
Bounce rate lower is better
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34%
39%
58%
Pages / visit
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2.4
1.8
3.0
Visit duration
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19s
22s
2m 31s
Traffic sources
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—
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● Direct 81% · ● Referral 17%
OpenCodeKilo CodeMostlyAIOpenAI Codex
066.6M133.2M199.7M266.3MKilo Code · 744.7KKilo Code · 164KKilo Code · 48.6KKilo Code · 16KKilo Code · 33.5KKilo Code · 14.4KKilo Code · 10.5KKilo Code · 26.4KKilo Code · 3.2KKilo Code · 1.9KMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KOpenAI 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 · 204.3M1K10K100K1M10M100M1BKilo Code · 744.7KKilo Code · 164KKilo Code · 48.6KKilo Code · 16KKilo Code · 33.5KKilo Code · 14.4KKilo Code · 10.5KKilo Code · 26.4KKilo Code · 3.2KKilo Code · 1.9KMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KOpenAI 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
Freemium
Free
Freemium
Starting price
Free
$20per month · free tier available
Free
$20per month · free tier available
Free tier
Free trial
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API access
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–
–
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Plans
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Capabilities input → output
Input
CodeText
CodeText
DataText
CodeText
Output
Code
Code
Data
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeResearch & AnalyticsAI Developer ToolsAI For Data Analytics
Development & CodeAI Code ReviewAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
5
6
9
Coding
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Development
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Agents
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Developer tools
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Synthetic data
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Coding in VS Code
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Data analysis
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GitHub automation
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GitHub pull requests
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Code analysis
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Code documentation
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Code reviews
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Data anonymization
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Data privacy compliance
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Data science
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Debugging
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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
▲ 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.