GitHub Copilot vs OpenCode vs Functionize vs Google Antigravity

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

Your tool
GitHub Copilot
vs
Competitor 1
OpenCode
Competitor 2
Functionize
Competitor 3
Google Antigravity
Compare
4 tools · best value per row highlighted
Your tool GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
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 Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
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
637.9Mvisits/mo
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14Mvisits/mo
MoM change
▲ 3.7%
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▼ 3.1%
6-month growth
+19.3%
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-31.9%
Global rank web
#49
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Avg. last 3 months
629.7M
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15.4M
Bounce rate lower is better
36%
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48%
Pages / visit
5.9
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2.2
Visit duration
6m 26s
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3m 35s
Traffic sources
● Direct 83% · ● Referral 15%
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● Direct 58% · ● Referral 42%
GitHub CopilotOpenCodeFunctionizeGoogle Antigravity
0159.5M318.9M478.4M637.9MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MGoogle 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 · 14M10M100M1BGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MGoogle 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
$4per month · free tier available
Free
$20per month · free tier available
Free
Free tier
Free trial
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API access
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Plans
Free FreeTeam $4/moEnterprise $21/mo
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Free FreeGrowth $20/moScale $100/moEnterprise Custom
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Capabilities input → output
Input
CodeText
CodeText
TextWeb pages
CodeText
Output
Code
Code
Data
AppsCode
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Development & CodeAI Testing
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
6
7
9
Agents
Coding
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Code autocompletion
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Development
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Agent management
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Terminal
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Developer tools
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Test automation
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Testing
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Agent creation
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Code reviews
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Coding in VS Code
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Test creation
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Test generation
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Vs code
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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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Test cases
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Website testing
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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
2
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.