Cortexa
An AI chat platform powered by Featherless AI giving users unrestricted access to thousands of open-source models — Llama, Mistral, uncensored variants, and more — with persistent chat history, model selection, and vision support.
The Problem
Most AI chat products lock users into a single model with heavy content filtering. The challenge was building a model-agnostic interface that felt premium and consistent regardless of which underlying model was selected — while managing the significant differences in capability, context window size, and response behavior across thousands of different models.
The Solution
// what I learned
Building on top of a third-party inference provider taught me how to design resilient integrations that degrade gracefully when the underlying service behaves unexpectedly. I also learned that UI consistency matters more in an AI product than almost anything else — users lose trust fast when the interface feels unpredictable even if the model output is good.
