OpenAI Codex vs OpenCode vs Greptile vs Google Antigravity

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
Greptile
Competitor 3
Google Antigravity
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 Greptile
greptile.com
Greptile is an AI code reviewer that builds a graph of your repository, covering files, functions and dependencies, and then sends a swarm of agents to review each pull request.
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Competitor Google Antigravity
antigravity.google
Google Antigravity assumes you already think in agent-driven workflows
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Traffic estimated monthly website traffic
Monthly visits
204.3Mvisits/mo
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14Mvisits/mo
MoM change
▲ 3.6%
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▼ 3.1%
6-month growth
+0.3%
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-31.9%
Global rank web
#212
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Avg. last 3 months
197.3M
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15.4M
Bounce rate lower is better
58%
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48%
Pages / visit
3.0
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2.2
Visit duration
2m 31s
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3m 35s
Traffic sources
● Direct 81% · ● Referral 17%
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● Direct 58% · ● Referral 42%
OpenAI CodexOpenCodeGreptileGoogle Antigravity
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 · 204.3MGoogle 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 · 14M10M100M1BOpenAI 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 · 204.3MGoogle 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
Freemium
Free
Freemium
Free
Starting price
$20per month · free tier available
Free
$30per month · free tier available
Free
Free tier
Free trial
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API access
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Plans
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Starter FreePro $30/moEnterprise Custom
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Capabilities input → output
Input
CodeText
CodeText
Code
CodeText
Output
Code
Code
Text
AppsCode
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Code ReviewAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeAI Code Review
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
6
9
9
Agents
Coding
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Development
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Developer tools
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Code reviews
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GitHub pull requests
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Terminal
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Agent creation
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Agent management
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Code analysis
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Code autocompletion
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Code quality
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GitHub automation
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Code documentation
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Code security analysis
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Code testing
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Code validation
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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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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 1
Saves
0
0
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0
Reviews
0
0
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0
Prompts
0
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0
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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.