In large companies, designers overwhelmingly use local AI coding tools (Cursor, Claude) over cloud-based ones (Replit, V0). The key advantage is using the company's real production app as a "starting place," which eliminates the need to recreate screens or components from scratch for every prototype.

Vercel's Pranati Perry explains that tools like V0 occupy a new space between static design (Figma) and development. They enable designers and PMs to create interactive prototypes that better communicate intent, supplement PRDs, and explore dynamic states without requiring full engineering resources.

Prototyping directly in the production environment makes high-quality interactions achievable without extensive resources. This dissolves the traditional design dilemma of sacrificing quality for speed, allowing teams to build better products faster.

With AI tools that allow natural language querying of business data, designers no longer need SQL to understand user behavior. This democratized access empowers them to contribute to strategy and become holistic product thinkers, not just visual executors.

AI coding agents enable "vibe coding," where non-engineers like designers can build functional prototypes without deep technical expertise. This accelerates iteration by allowing designers to translate ideas directly into interactive surfaces for testing.

AI removes the dependency on engineering for prototyping. Designers can now build high-fidelity demos themselves, allowing them to visualize and sell an idea to stakeholders much faster without having to persuade a developer to join their journey first.

Use Claude's "Artifacts" feature to generate interactive, LLM-powered application prototypes directly from a prompt. This allows product managers to test the feel and flow of a conversational AI, including latency and response length, without needing API keys or engineering support, bridging the gap between a static mock and a coded MVP.

Stripe built "Protodash," an internal tool that allows designers, PMs, and engineers to quickly create high-fidelity AI prototypes that mirror the real product. This removes the bottleneck of needing engineering for early exploration and empowers proactive, cross-functional ideation.

Shopify's new SimGym tool, which uses AI agents to simulate how customers interact with a store, points to a new standard in marketing. Soon, launching a campaign, redesign, or product without first running it through a sophisticated AI simulation will be considered archaic and reckless.