Talk to our team about building and serving your own models on Nucleus.

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See the <link>API documentation</link> if you need technical help

From single-model endpoints to multi-model pipelines with evaluation gates, configured to match your production workflow.

Customisation

Your custom models behind the same API your code already calls.

Full support during rollout, including model configuration, integration, and team training to ensure seamless adoption.

Support

OpenAI and Anthropic compatible APIs

Models trained on your enterprise data across six modalities, delivering domain-specific accuracy tuned to your benchmarks.

Custom-Trained Models

Data connection, automated training, evaluation and live inference in one managed pipeline. Connect your sources and Nucleus handles the rest.

End-to-End AI Pipeline

Training data and model weights live in your account, encrypted at rest and in transit. Export the weights at any time and run them wherever policy requires.

Private and Secure

Custom models trained on your enterprise data, evaluated against your benchmarks, and served as private endpoints you own.

Discover case studies on how Nucleus is being used around the world to quickly create outstanding products and set new industry standards.

Customer stories

Customer Stories

Infrastructure

 to innovate and scale with ease.

Learn how Nucleus AI transformed property market analysis by creating a smart dashboard for querying and visualising millions of HDB resale data points in real time.

HDB Resale Price Dashboard enables real-time analysis of Singapore housing market data

Learn how Mandai Wildlife Group transformed their operations by integrating multiple systems and custom AI solutions into a unified platform.

Mandai Wildlife Group transforms animal care operations with Nucleus

Learn how NNI revolutionised neurosurgical education by implementing an immersive VR training environment for brain aneurysm surgeries with comprehensive performance analytics.

National Neuroscience Institute enhances surgical training with Nucleus AI VR simulation platform

Custom models trained on Nucleus that connect to the tools a business already uses, and deliver the result a team used to spend a day on. Every workflow is production-ready and runs on your data.

Built with Nucleus

Private, custom AI models trained on your enterprise data, benchmarked against your standards, and hosted via API. Managed with dashboards, monitoring and automation. Frontier-level intelligence for your workflows, at a fraction of the operating cost.

build and own AI models

Nucleus helps you

How it works

Open models across language, vision, image, video and audio. Fine-tune on your data, serve the result as a private endpoint, and keep the weights.

Choose your base model

Turn proprietary datasets into evaluated, versioned models with managed fine-tuning jobs. Upload a JSONL file, get back a private endpoint.

Data Teams

Own your AI strategy. Training data stays in your account, weights are exportable, and models can run wherever policy requires.

Enterprise Leaders

Fine-tune and deploy custom models on your enterprise data with full control over training pipelines and inference endpoints.

ML Engineers

Serve models behind OpenAI- and Anthropic-compatible endpoints, with usage tracking and rate limits built in.

Platform Teams

Ship features on models that speak your domain. Keep your existing OpenAI or Anthropic client code and swap the base URL.

Product Teams

Drive the training loop call by call. RL, DPO, distillation, and custom losses, with the GPUs handled for you.

Research Teams

Private models for every team

Build custom AI models on your data across six modalities, evaluate them against your benchmarks, serve them as private endpoints, and own every checkpoint. Three meters run the bill: training tokens, served tokens and storage.

Three ways to benchmark: upload your own test sets, build them in the dashboard, or let Nucleus generate them. Every checkpoint gets an intelligence index for your domain.

Evaluate

Training data stays in your account. Weights are yours to export and run wherever policy requires.

Export weights, choose your region, go air-gapped

Version your models, roll back to any checkpoint, and promote across environments. Swap your OpenAI or Anthropic base URL and the rest of your code stays the same.

Serve

Private endpoints, compatible with OpenAI and Anthropic

Bring your own JSONL or connect your data sources. Choose from open models across six modalities, with managed GPUs handling the rest.

Train

Train. Evaluate. Serve. Own.

Three meters run the bill: training tokens, served tokens and storage. Reserve dedicated GPUs when you need guaranteed capacity. Idle time costs nothing.

Dedicated GPUs

Served tokens

Storage

Training tokens

Near-frontier intelligence at 2% the cost

Fine-tuned models built on your enterprise data, evaluated and served as private endpoints.

APIs for custom solutions

From dataset to deployed model: integrations that make your data trainable, managed GPUs, private endpoints and the APIs that tie them together.

Own the whole journey

Five API calls take a JSONL file to a fine-tuned model. Two of them are the point: one serves it behind an OpenAI-compatible endpoint, the other hands you the weights. Prefer to drive the training loop yourself? Forward-backward passes and optimiser steps are first-class API calls too.

Point the SDK you already use at a new base URL. The call signature, the response shape and your code stay as they are.

Download the same checkpoint the endpoint is serving. It runs on your hardware, air-gapped if policy asks for it.

Name a base model and the file. Scheduling, GPUs and checkpointing are handled, and you get a run you can watch.

Any checkpoint becomes a private endpoint the moment training finishes. There is no image to build and no cluster to size.

Bring a JSONL file of examples. That is the only prerequisite, and the file id it returns is what every later call refers to.

Your application

Your hardware

From dataset to a model you own

Train, evaluate, serve and own. Every product works independently and connects into one platform when you need it to.

Build with Nucleus

Get started now

Assistants for your teams, backed by your own custom-trained models and your private data.

AI Chat Agents

Assistants powered by your private models

Train on managed GPUs across six modalities, serve your models as private endpoints, and export the weights.

AI Cloud

Custom models built on your enterprise data, evaluated against your benchmarks and served as private endpoints.

Custom AI Solutions

Integrate your models into existing products with clean REST APIs, documented end to end.

Data APIs

Roles, scoped keys and an append-only audit log, so a model can act in your systems within the bounds you set.

Harness

Our GPU servers at your premises, installed and maintained by Nucleus, running your models behind your firewall.

Custom Models
Built on Your Data

End-to-End AI Pipeline

Custom-Trained Models

Private and Secure

How it works

Connect

Train

Serve

Connect

Train

Serve

OpenAI and Anthropic compatible APIs

Customisation

Support

Your models, served as a managed API. At a fraction of the cost.

Custom ModelsBuilt on Your Data

End-to-End AI Pipeline

Custom-Trained Models

Private and Secure

How it works

Connect

Train

Serve

Connect

Train

Serve

OpenAI and Anthropic compatible APIs

Customisation

Support

Your models, served as a managed API. At a fraction of the cost.

Custom Models
Built on Your Data