The development of Claude Cowork demonstrates a massive acceleration in product velocity. The entire application was written by its underlying AI agent, Claude Code, in just a week and a half. This showcases how AI-driven coding is collapsing development cycles for new software products.
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New AI models are creating profound moments of realization for their creators. Anthropic's David Hershey describes watching Sonnet 4.5 build a complex app in 12-30 hours that took a human team months. This triggered a "little bit of 'oh my God'" feeling, signaling a fundamental shift in software engineering.
Monologue's developer treats AI tools like Claude Code and GPT-5 as his engineering team. He credits GPT-5's ability to navigate poorly documented, legacy Mac code from the 1980s as a "biggest unlock," enabling him to build a production-grade app without hiring specialist developers.
AI coding has advanced so rapidly that tools like Claude Code are now responsible for their own development. This signals a fundamental shift in the software engineering profession, requiring programmers to master a new, higher level of abstraction to remain effective.
Showcasing a massive leap in productivity, the Sora Android app went from concept to public launch in 28 days with just 2-3 engineers. They used Codex to port functionality from the existing iOS app, demonstrating how AI teammates can drastically compress development timelines for complex projects.
Capable AI coding assistants allow PMs to build and test functional prototypes or "skills" in a single day. This changes the product development philosophy, prioritizing quick validation with users over creating detailed UI mockups and specifications upfront.
Claude Code can take a high-level goal, ask clarifying questions, and then independently work for over an hour to generate code and deploy a working website. This signals a shift from AI as a simple tool to AI as an autonomous agent capable of complex, multi-step projects.
AI acts as a massive force multiplier for software development. By using AI agents for coding and code review, with humans providing high-level direction and final approval, a two-person team can achieve the output of a much larger engineering organization.
Traditionally, building software required deep knowledge of many complex layers and team handoffs. AI agents change this paradigm. A creator can now provide a vague idea and receive a 60-70% complete, working artifact, dramatically shortening the iteration cycle from months to minutes and bypassing initial complexities.
Cowork, a polished product from a major AI lab, was developed in just over a week using Claude Code itself. This is a major proof point that AI-assisted "vibe coding" is no longer just for prototypes but is a viable method for achieving extreme product velocity on production-grade software.
The new Spiral app, with its complex UI and multiple features, was built almost entirely by one person. This was made possible by leveraging AI coding agents like Droid and Claude, which dramatically accelerates the development process from idea to a beautiful, functional product.