Sipp.sh Launches Open-Source Library for Local AI Inference with 3x to 5x Speedup

Noumena Labs just dropped Sipp, an open-source library that lets developers run AI inference locally or in the cloud through a single API. The idea is to push AI beyond the chat interface, embedding it directly into web apps, games, or desktop tools for continuous monitoring and decision-making.

In its announcement, Noumena Labs calls Sipp an "opinionated" library. The team realized that large language models don't have to be confined to chat boxes. “We began to realize that an LLM isn’t just a chat interface for information retrieval,” the statement reads. “It can be integrated directly into web, games, or productivity apps to handle continuous monitoring and decision-making. It can act as a sort of ‘second brain,’ the silent hand that guides and helps a user without them even realizing it.”

Low latency is the key. The team built an entirely new stack in Rust and C++, working alongside the llama.cpp project. As part of that collaboration, Noumena Labs contributed back to the community by helping upgrade the GGML WebGPU backend. Sipp ships as a zero-dependency library for both desktop and web environments, delivering a 3x to 5x speedup in token decode over popular alternatives.

The library tackles the latency and privacy gotchas of cloud-only inference. By running locally with fast decode speeds directly in the browser, Sipp lets developers build apps that process data on-device, keeping compute costs low and data absolutely private.

Early use cases are already surfacing. Think continuous monitoring with local vision, or dynamic generation of game elements in a real-time wizard-vs-wizard duel. Noumena Labs sees these as the first examples of a new paradigm where AI operates like an invisible assistant, responding instantly to user actions.

Sipp is fully open-source and available on GitHub under the Noumena Labs organization. You can grab it from sipp.sh, where live demos and benchmarks are also up for grabs. The company is inviting developers to run their own benchmarks and hop onto Discord discussions.

With this launch, Noumena Labs is positioning Sipp as a foundational tool for what it calls the next frontier of UX design: integrating AI not as a separate chat interface, but as a seamless, always-on component of any application.