Streamline AI Costs Drafting for UK Professionals

About AI Costs

Blue digital brain icon with circuit lines on a dark gradient background.

Made by and for costs draftsmen.

AI Costs is a desktop app for UK costs professionals developed by expert costs draftsmen to radically accelerate and simplify the costs drafting process.

Designed for those working in CostsMaster and Excel, this app enables you to:

Automatically rewrite description entries using AI,

Review and adjust fully formed, bill-ready sentences side by side with your original text—faster and clearer than typing from scratch,

Clean, format, and structure spreadsheets through a smooth, intuitive interface,

Reduce repetitive work and focus on higher-value strategic tasks.

All processing occurs locally, with one cell at a time sent to a trusted cloud provider, ensuring your data remains private and GDPR-conscious.

Client names, emails, telephone numbers, bank details, sort codes, NI/NHS numbers, and postcodes are scrubbed automatically prior to AI processing.

Whether you're preparing a high-value Bill of Costs or rewriting thousands of email subject lines, AI Costs helps you streamline drafting, draft faster, reduce errors, and deliver polished, professional work every time.

Three ways to draft with AI Costs

AI Costs gives you three drafting tools, so you can work the way you already do – just faster and more consistent. Pick the mode that fits your workflow today and switch between them as you need.

1. Quick Rewrite – for finished CostsMaster budgets

Best when: You have already drafted the budget in CostsMaster and everything is phased, located and ready – you just need to adjust the descriptions.

Quick Rewrite lets you keep working inside CostsMaster while using AI Costs as a drafting assistant in the background.

Reuse all your existing phasing, tasks and locations from CostsMaster
Copy a description, send it to AI Costs, then paste the improved version straight back in
Works well with “select all in cell” in CostsMaster and Shift + ↓ for fast copy and paste runs
Minimal setup – ideal when you are under time pressure and only need the text refined

It is usually the slowest of the three modes in pure throughput terms, but it requires almost no change to your current workflow.

2. Bill Descriptions Processor – one-by-one control, most pleasant to use

Best when: You are preparing a bill and want maximum control over each entry with a clean review experience.

The Bill Descriptions process takes each row one at a time, rewrites it, and shows you the result clearly so you can accept, tweak or reject.

One-by-one rewrites for the highest level of control
Check and tidy your data in the spreadsheet before you upload it to the app
Faster than QuickRewrite once you are in the rhythm
Very “human in the loop” – you stay in charge of every line that goes into the bill

For many users this is the most pleasant way to work: calm, controlled and still noticeably quicker than manual drafting.

3. Batch Review Mode – maximum speed for advanced users

Best when: You have a large spreadsheet of time entries and want to get through them as quickly and accurately as possible.

Batch Mode is where AI Costs is at its fastest. You set things up carefully once, then let the app process large volumes of entries in one go.

Rewrite whole batches of entries in a single operation
Map your columns once, then reuse that setup next time
Designed for high-volume, repeat work where speed really matters
Harder to get used to than the other modes, but delivers the biggest time savings

Batch Mode is the trickiest to learn, but once it clicks, it unlocks the biggest gains – ideal for power users and heavy bill drafting days.

You can start in the mode that feels most comfortable and move up to Batch Mode as your confidence grows – the same AI engine sits underneath all three.

AI Costs

AI Costs

“Everyone’s looking for an edge - this is a cliff.”

About AI Costs

Three ways to draft with AI Costs

1. Quick Rewrite – for finished CostsMaster budgets

2. Bill Descriptions Processor – one-by-one control, most pleasant to use

3. Batch Review Mode – maximum speed for advanced users

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