ยท 3 min read

Why vibe coding projects stay in the demo phase

Straight road to a circle labeled "demo", then branches beyond the demo into tree-like lines.
TLDR; plan and budget for infrastructure and UX work beyond the demo.

The journey from a promising AI demo to a production-ready feature is often more complex than it first appears. What starts as a seemingly straightforward path can quickly evolve into a labyrinth of unforeseen technical and user-centric challenges.

The Alluring Demo: A Glimpse of the Future

Imagine you are developing a groundbreaking AI feature: a UX reviewer that analyzes uploaded videos and provides insightful feedback. You assemble a demonstration in a multi-modal LLM playground, and to your delight, it functions as intended. The AI processes the video and generates a review, showcasing the immense potential of your creation.

However, a more thorough examination reveals minor imperfections. The feedback, while impressive, is not always flawless. You identify three primary areas for improvement:

Despite these issues, the demo is a resounding success, validating the concept and generating significant excitement. The path to a production-ready feature appears clear: a few adjustments to enhance accuracy, some optimization for speed, and a more efficient model to reduce costs. It is at this juncture that the hidden complexities of AI development begin to surface.

The "Vibe optimization" Rabbit Hole

The initial optimism fueled by a successful demo can quickly dissipate during the optimization phase. Many development teams find themselves ensnared in a frustrating cycle of "optimization whack-a-mole." An attempt to resolve an accuracy issue by tweaking a prompt may inadvertently introduce a new problem elsewhere. A switch to a faster, more cost-effective model may result in a significant degradation of feedback quality. Each localized improvement seems to trigger a new, unforeseen issue, creating a sense of stagnation where progress is elusive.

After a period of such trial and error, a critical realization emerges: effective optimization requires a robust infrastructure. This includes:

Without this foundational infrastructure, you are essentially navigating in the dark. Localized improvements may be occurring, but at a systemic level, the product as a whole may be regressing. Establishing this infrastructure is a significant undertaking, but it is an indispensable investment for escaping the optimization quagmire and making meaningful progress toward your success metrics, assuming you have established them. Without clear metrics, the development process can become a directionless and protracted endeavor.

The AI UX Tightrope

Even with a robust infrastructure and a system that performs well against your metrics, you will inevitably confront user experience complexities. The reality is that your AI feature will not be perfect. It will make mistakes, it may be slow at times, and it may incur high usage-based costs.

To ship a production-ready product you will need to consider the following UX challenges:

Conclusion: from potential to product

The fundamental challenge in AI projects has shifted. In the past, getting machine learning to work was the hardest part. If you built a successful demo, you'd proven the technology was viable. Today, LLMs handle that technical proof-of-concept out of the box, creating an illusion: demos now feel much closer to production-ready than they actually are.

Modern AI demos show what's possible, but they no longer indicate that the hard work is behind you. Understanding this shift is important for shipping AI products that work in the real world. The path from demo to production now requires investment in LLM infrastructure and user experience, and planning for this work upfront is what separates promising prototypes from valuable, lasting products.