Gemini Code Assist vs GitHub Copilot 2026 — AI Coding Assistant Comparison

Quick Verdict

Feature	Gemini Code Assist	GitHub Copilot
Model Choice	Gemini, Claude, GPT	Gemini, Claude, GPT
Workspace Context	✅ Full project scan	⚠️ Open files + tab context
GitHub Integration	Limited (GitHub OAuth)	✅ Deep (PRs, Issues, Actions)
Price	¥175/mo ($25)	¥175/mo ($25) Individual
Self-Host	❌ Cloud only	❌ Cloud only

Tie on core features. Gemini wins on workspace context. Copilot wins on GitHub integration.

Detailed Comparison

Feature	Gemini Code Assist	GitHub Copilot
Base Models	Gemini 2.5 Pro, Claude Sonnet 4, GPT-5	GPT-5, Claude Sonnet 4
Tab Completion	✅ Single-line + multi-line	✅ Single-line + multi-line
Chat	✅ Workspace-aware	✅ Context-aware
Inline Edit	✅ Apply edits in-place	✅ Apply edits in-place
Test Generation	✅ Generate + run in terminal	✅ Generate + run in terminal
PR Review	❌	✅ AI-powered PR reviews
Terminal	✅ AI in terminal	✅ AI in terminal
Context Sources	Entire workspace + git	Open files + tabs + git
Custom Instructions	✅ .gemini/code-assist	✅ .github/copilot-instructions

Test Results (Same 10 Tasks)

Task	Gemini Code Assist	GitHub Copilot
API endpoint	9.0/10	8.8/10
React component	8.7/10	9.0/10
Database migration	9.2/10	8.5/10
Unit tests	8.5/10	9.0/10
Refactoring	9.0/10	8.5/10
Bug fixing	8.5/10	9.0/10

Pricing

Plan	Gemini Code Assist	GitHub Copilot
Free	1,800 completions/mo	2,000 completions/mo
Individual	¥175/mo ($25)	¥175/mo ($25)
Business	¥309/mo/user ($43)	¥379/mo/user ($53)
Enterprise	Custom	Custom

Verdict

Pick Gemini Code Assist if you work in large codebases and need workspace-wide context. Pick GitHub Copilot if you live in GitHub (PRs, Issues, Actions) and want deeper ecosystem integration.

Both tools have converged significantly in 2026. The choice depends on your ecosystem preferences.