Compare AI Coding Tools

Comparing 3 tools side by side

Comparison	Firebase Studio (formerly Project IDX)✓ Firebase Studio cloud IDE with Gemini-assisted development Free	Replit✓ AI-first cloud IDE with Replit Agent, Core/Teams credits, and one-click app hosting Freemium	Cursor✓ The AI-native code editor with $1B+ ARR, 25+ models, and background agents on dedicated VMs Freemium
Category	AI-Powered IDE	AI-Powered IDE	AI-Powered IDE
Pricing	Preview (no GDP): $0 Google Developer Program Standard: $0 (program enrollment) Google Developer Program Premium: Subscription (via GDP plan)	Starter: $0/month Core: $25 monthly or $20/month billed annually Teams: $40/month or $35/month billed annually per user Enterprise: Custom	Hobby: $0/month Pro: $20/month Pro+: $60/month Ultra: $200/month Teams: $40/user/month
AI Models	Gemini in Firebase (configurable: 2.5 Pro/Flash, 3 Pro preview where available)	Replit proprietary models	Claude Opus 4.5Claude Sonnet 4.5Claude Sonnet 4.6GPT-5GPT-5.2+4 more
Context Window	Long-context Gemini assistance; files and caching supported via Gemini API	Project-aware, long-context agent	Up to 272K tokens (codebase-wide context via RAG indexing)
Capabilities	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File	Code Completion Code Generation Code Review Debugging Refactoring Testing Documentation Chat Agentic Mode Multi File Voice Input
Platforms	Web	WebDesktopMobile (iOS/Android apps)	macOSWindowsLinux
Languages	JavaScriptTypeScriptPythonDartJavaKotlin	PythonJavaScriptTypeScriptJavaC++Go+2 more	All languages supported by VS Code
Open Source	No	No	No
GitHub Stars	N/A	N/A	N/A
Users	Preview users	40M+ builders (site claim)	1M+ daily active users
Rating	N/A	N/A	N/A
Visit	Visit Website →View Details	Visit Website →View Details	Visit Website →View Details