AI Fine Tuning Services for App Developers

Partner AI helps app developers fine-tune and optimise AI models for production use.

We work with independent developers, startups, and product teams to select, adapt, and deploy large language models that behave the way your application needs — in terms of tone, structure, reliability, and cost. Whether you’re building a new AI-powered app or refining an existing one, Partner AI provides the expertise needed to move from generic models to custom, application-specific AI. Based in the UK, we work with developers across English-speaking markets, including the US, Canada, and Europe, and regularly work US and European hours to support active development.

Built for production, not demos

Modern large language models are powerful out of the box, but real applications need more than raw capability.

Partner AI helps developers:

• Fine-tune models to match app intent and user experience
• Control output formatting, tone, and function calling
• Reduce AI ‘hallucinations’ and inconsistent responses
• Distil large models into smaller, faster, lower-cost versions

Our focus is on shipping AI features that work reliably at scale.

Practical AI fine-tuning

We work with leading large language models and open-weight architectures to apply fine-tuning strategies that suit your app’s requirements. This includes:

• Supervised fine-tuning using your own datasets
• Knowledge infusion so models understand your domain
• Model distillation to reduce inference and API costs
• Iterative tuning to improve performance over time

Rather than locking you into a single provider, we help you choose the right model and approach for your use case.

View AI Fine-Tuning Services

Partner AI offers a dedicated iOS app that provides a direct communication channel between you and our engineering team.

The app allows you to:

• Discuss your AI use case and architecture
• Upload datasets and domain knowledge
• Test model behaviour against your tuning goals
• Track your project’s progress as your model is refined

It’s designed for developers who want a fast, collaborative workflow without unnecessary overhead.

Experience beyond AI theory

Partner AI is a trading name of Cheshire Ventures Ltd, a UK-registered company founded in 2021. The team brings experience from building and operating real online products at scale — including high-volume e-commerce systems — where performance, cost control, and reliability are critical. That commercial background informs how we approach AI: with a focus on deployability, efficiency, and long-term maintainability.

Talk to Us

If you’re building an AI-powered app and want your models to perform better, cost less, and behave more predictably, we want to hear from you. Use the contact form on this site or start a conversation directly via the Partner AI iOS app.