Sovereign AI agents for enterprise
Your data doesn't move. Your governance rules apply. Every agent runs inside your environment.
Trusted by enterprise leaders across retail, telco, health and financial services.
Xavier is our analytics agent. It delivers trusted answers from your data fast
Xavier answers business questions and runs the analysis inside your environment. It learns your metrics, respects your governance, and gets faster the more your team uses it. No data leaves your walls.
Not a chatbot on your dashboard
Ask a question in plain English. Xavier does the analysis and returns the answer, the query behind it, and the source.
Your data and your models
Runs on-premise or in your private cloud, and brings your own models including open-weight models running in your environment, so you control both the data and the model.
Pre-configured for your domain
Xavier ships with pre-existing domain configuration for retail, retail media and telco, then maps your own metrics on top.
98%+ accuracy at 5x fewer tokens
Xavier answers at 5x fewer tokens per question than a tier-1 cloud-native platform, and measured 98%+ on the client evaluation set at a major Australian telco.
Our Services
Pick an industry to see which services we lean on most, or explore all seven side by side.
Data Platform and Engineering
Lakehouse platforms, reliable pipelines and observability, built on the cloud you already run.
Semantic and Context Layer
The metric definitions, knowledge graph and retrieval layer that take agent accuracy from ~50% to 95%+.
Custom Agents
Bespoke AI agents scoped, built, tested and deployed into production inside your environment.
Managed Services
Architects, engineers, analysts and data scientists, drawn on as you need them, with agents carrying the repetitive work.
Data and AI Readiness Audit, Strategy and Governance
An honest baseline of your data and AI maturity, a roadmap, and the delivery to execute it.
Machine Learning
ML models that solve a real problem and stay useful in production, backed by MLOps and governance.
Xephyr Academy
Chat assistant training across Microsoft Copilot, Claude and ChatGPT, plus Cowork, taught by the people who ship production AI.
The latest from Xephyr
Four reasons enterprises pick us
Sovereign engineering, proven in production, run by practitioners. What you buy when you buy Xephyr.
Sovereign and governed by design
Cloud, self-hosted or fully air-gapped. Your data never leaves your environment, every answer shows its working and its source, and the whole thing is auditable by default.
Proven in production
Xavier is live in production at a major Australian telco at 98%+ accuracy, using 5x fewer tokens per question than a tier-1 cloud platform.
Practitioners who build it and run it
From raw data foundations to a production agent, delivered by practitioners with 20+ years in large enterprises. We co-deliver so your team owns and scales what we build. Most firms do strategy or engineering. We do both.
Commercial and dependable
We speak revenue, cost and risk, tie our work to business outcomes, and deliver what we said to the quality we expect.
Your data never leaves your control
Most AI vendors want your data in their cloud. We don’t. Xephyr agents and platforms deploy inside your environment, on-premise or in your private cloud, under your governance. That is what sovereign AI means.
Deploys in your environment. On-premise or private cloud. LLM-agnostic.
Platforms you already run
Certified by the platforms we build on
That means current certifications on your stack, and engineering support from the vendors when we need it.
Trusted answers on a national telco’s own data, at a fraction of the cost
We deployed Xavier for a major Australian telco to answer commercial questions on their own data, inside their environment. Xavier measured 98%+ against the client’s own evaluation set, using 5x fewer tokens per question than a tier-1 cloud-native platform.
Client Stories
The value you've brought the organisation in the last 5 months has already paid off the expense and I'm excited to continue working together next year.
Jacqueline Lejarzo
Head of Data, Garvan Research Foundation
OUR MISSION
Give enterprise leaders trusted answers from data they control
Put your data to work
Book a call to see how sovereign AI agents can deliver trusted answers inside your business.