AI Engineers Who Build What Enterprises Actually Need
Custom LLM was founded on a conviction: that the most transformative AI is not a general-purpose chatbot — it is a private model that deeply understands a specific organisation's data, domain, and decision-making processes.
Our team of AI and machine learning engineers in Melbourne partners with enterprises across financial services, legal, healthcare, and government to build private AI models that deliver measurable business impact while maintaining absolute data sovereignty.
Our Values
Four principles that guide every model we build and every engagement we undertake.
Data Sovereignty
Your data is your most valuable asset. We engineer every system so your proprietary information never leaves your control, with Australian-hosted infrastructure and zero third-party data sharing.
Engineering Excellence
We hire senior ML engineers, not prompt tweakers. Our team builds production-grade systems with proper version control, testing, monitoring, and the operational rigour enterprise deployments demand.
Partnership Approach
We embed with your team, learn your domain, and transfer knowledge throughout the engagement. Our goal is to make your organisation self-sufficient in managing and evolving your AI systems.
Australian Innovation
Built and operated in Melbourne, we understand Australian regulatory requirements, data residency laws, and the unique challenges facing local enterprises adopting AI at scale.
How We Work
We are not a black-box AI vendor. We work alongside your team with full transparency at every stage.
Deep Domain Immersion
Before writing a single line of code, our engineers spend time with your subject matter experts to understand your data landscape, terminology, workflows, and what “good” looks like in your domain. This upfront investment in understanding is what separates a model that works from one that transforms.
Iterative Development with Checkpoints
We deliver in two-week sprints with measurable evaluation metrics at each checkpoint. You see your model improving in real time, provide feedback on outputs, and steer the project based on actual results — not promises.
Knowledge Transfer, Not Lock-in
We document everything, train your team, and hand over complete ownership of the model and infrastructure. Our ongoing support plans are optional — you are never locked in. If you want to bring management in-house, we will help you do it.
Part of the Yes AI Family
Backed by Yes AI
Custom LLM is a specialised division of Yes AI, Australia's leading AI consulting company. While Yes AI serves businesses across the full spectrum of AI solutions — from voice agents to workflow automation — Custom LLM focuses exclusively on building private, enterprise-grade language models for organisations with complex data and strict compliance requirements.
Ready to Work with Us?
Join 30+ Australian enterprises that trust Custom LLM to build and manage their private AI infrastructure.
Book a Strategy Session