OpenAI Codex vs OpenCode vs GitHub Copilot CLI vs Stack AI

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

Your tool
OpenAI Codex
vs
Competitor 1
OpenCode
Competitor 2
GitHub Copilot CLI
Competitor 3
Stack AI
Compare
4 tools · best value per row highlighted
Your tool OpenAI Codex
openai.com
A dedicated coding agent that writes and runs code for you
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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.
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Competitor GitHub Copilot CLI
github.com
It reads, writes and runs code, works directly with your issues and pull requests, and carries a task from planning to merged code.
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Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
—
—
6.3Kvisits/mo
MoM change
▲ 3.6%
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▼ 57.9%
6-month growth
+0.3%
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-93.7%
Global rank web
#212
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#1,700,092
Avg. last 3 months
197.3M
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—
13.9K
Bounce rate lower is better
58%
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39%
Pages / visit
3.0
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1.8
Visit duration
2m 31s
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—
14s
Traffic sources
● Direct 81% · ● Referral 17%
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OpenAI CodexOpenCodeGitHub Copilot CLIStack AI
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 · 204.3MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3K1K10K100K1M10M100M1BOpenAI 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 · 204.3MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Free
Freemium
Starting price
$20per month · free tier available
Free
Free
Free tier
Free tier
Free trial
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API access
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Plans
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Capabilities input → output
Input
CodeText
CodeText
CodeText
DataDocumentsText
Output
Code
Code
Code
Apps
Skill level
Advanced
Advanced
Intermediate
Intermediate
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
6
5
7
Agents
Coding
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GitHub pull requests
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Developer tools
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Development
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No-code
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Workflows
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Agent creation
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Business automation
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GitHub automation
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Process automation
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Code documentation
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Code reviews
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Debugging
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Finance workflow automation
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GitHub management
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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
▲ 1
▲ 0
▲ 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.