What could you create with 2,000 lines of production quality code a day?
CodeRhapsody.ai is the supervised autonomous coding tool designed for experienced software engineers.
YOU are the expert. Not the AI. With CodeRhapsody.ai you design the system; you supervise the build; the AI writes the code.
Join the future of software development
Don't be evil
4X your productivity without sacrificing design quality.
CodeRhapsody has shell access and acts autonomously to execute your vision.
4X Productivity
Execute commands, read files, run tests, and deploy applications directly from your AI assistant.
Intelligent Safety Systems
Built-in safeguards protect your code and reputation while maintaining development velocity.
Enhanced Privacy
Unlike other AI coding tools, CodeRhapsody uses confidential computing so we cannot see your work.
Claude 4.5 Sonnet Powered
Access the most advanced AI model available without needing your own $400 (Tier 4) Anthropic account.
Stay in Control While AI Codes
If you like Claude Code, you'll love CodeRhapsody.
Like Claude Code, But we take it further: see the AI's thinking in real-time. Expert developers report 15% higher productivity because richer feedback enables better guidance at the exact moment it matters.
Real-Time Development Collaboration
Stream AI's Thinking Process
Unlike other tools, see the AI's reasoning unfold in real-time in the Actions tab. Spot architectural issues early and provide expert guidance at exactly the right moment—before mistakes compound.
Guide & Interrupt as Needed
Provide hints, course corrections, or stop execution instantly - maintain control over every decision.
Clean Chat, Clear Actions
Conversation stays focused while all technical actions are tracked separately - follow the logic even through complex tool chains.
A New Coding Methodology
Writing 40,000 lines of code per month requires a new approach to software development.
Principle 0: You are the expert.
The AI is a tool, not a designer. Complex systems require an expert architect—you.
Principle 1: Read all thinking.
To maintain expertise when the AI writes 90% of the code, you must understand its reasoning. CodeRhapsody makes this possible by showing you the AI's thought process in real-time.
Principle 2: Guide in real time.
Don't waste time perfecting prompts. Give simple instructions and guide the AI as it works. CodeRhapsody's real-time feedback loop is key to its 2X productivity advantage.
Principle 3: Modular design.
At 2,000 lines of code per day, you can't review everything. Strict modularity is the only way to scale. Define and carefully review a common module for interfaces and core data structures, then build everything else around it.
Principle 4: Develop with fakes first.
AI-generated unit tests often miss real bugs. Instead, build fake implementations for all modules and write integration tests against them first. Once the tests pass, start building the real modules.
About CodeRhapsody.ai
Bio + Manifesto
Bill Cox
Creator
Bill Cox is a veteran Silicon Valley software developer. He is a pioneer in place and route software and electronic design automation. In the 2000s he founded and exited ViASIC (acq. Triad Semiconductor). For the last decade he's focused on cryptography, privacy and security, and is the co-author of Hacking Cryptography.
He's spent the last 6 months writing >240K lines of code to create CodeRhapsody.ai. He lives in Sausalito, and holds a degree in EE/CS from Berkeley.
AI at the Helm
If you are a tech founder or senior software developer, you don't want to miss Bill's latest book, AI at the Helm. The book is a manifesto on the next generation of code leadership and what it will take to transform coding teams to stay competitive.
Ready to 4x Your Development Speed?
Are you ready to join the future of advanced software development?