Automation, assessed independently

Every automation case omits the same cost. We put it back before you sign.

Thornbury is an independent advisory practice. We assess automation business cases and report the exception cost that turns a persuasive payback into a defensible one.

Four engagements assessed

336 hours returned per month

Isometric gold robotic and human hand meeting in a handshake

We assess whatever your team has already chosen

ChatGPT, Claude, Copilot, n8n and eight more. The tool changes nothing about the exception arithmetic.

ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing
ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing
ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing
ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing
ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing
ChatGPT Generating
Claude Thinking
Copilot Suggesting
DeepSeek Processing
Gemini Loading
Hugging Face Uploading
Midjourney Rendering
Mistral Answering
n8n Automating
Ollama Running Locally
Perplexity Searching
Stability AI Diffusing

The number every business case omits

Hours saved times hourly rate is the easy arithmetic, and it is what your board has already been shown three times. Price the tasks the agent does not clear and the conversation changes.

Your numbers
Honest payback
3.5 months
$1,290 saved per month, after exceptions
What the other calculators leave outAt 92% accuracy, 40 tasks a month still reach a human, and they take longer than the original job because someone is checking the agent. That is $280 a month, and $3,360 off the first-year headline.
Typical pitch2.9 months$14,340
With exceptions priced in3.5 months$10,980
Payback and net position after twelve months.

How we assess a case that survives month three

Pilots rarely fail on capability. They fail because nobody wrote down what the agent was permitted to get wrong, so month three becomes an argument instead of a review.

The exception path, mapped first

Before anyone writes code we establish what the agent cannot handle and where that work goes instead. The escalation route belongs in the scope document, not in month three.

The exception path, mapped first

Before anyone writes code we establish what the agent cannot handle and where that work goes instead. The escalation route belongs in the scope document, not in month three.

An accuracy budget, agreed up front

We insist on a confidence floor before anything ships. Below it, work routes to a person automatically and is logged as an exception rather than guessed at.

An accuracy budget, agreed up front

We insist on a confidence floor before anything ships. Below it, work routes to a person automatically and is logged as an exception rather than guessed at.

The number that survives review

You get hours returned, exceptions handled and measured payback every quarter. Not the demo-day figure nobody revisits once the invoice clears.

The number that survives review

You get hours returned, exceptions handled and measured payback every quarter. Not the demo-day figure nobody revisits once the invoice clears.

Measured across four engagements

336

Hours returned per month

Across four deployments

336

Hours returned per month

Across four deployments

91.5%

Median agent accuracy

Measured across 90 days

91.5%

Median agent accuracy

Measured across 90 days

3.2

Median payback in months

After exception cost

3.2

Median payback in months

After exception cost

223

Exceptions handled monthly

Escalated to a person by design

223

Exceptions handled monthly

Escalated to a person by design

What clients say afterwards

They were the only firm that told us what the agent would fail at. Everyone else showed us a number with no exceptions in it.

a man in a green shirt looking off into the distance

Anjali Deshmukh

Operations Director, Calder & Roe

They were the only firm that told us what the agent would fail at. Everyone else showed us a number with no exceptions in it.

a man in a green shirt looking off into the distance

Anjali Deshmukh

Operations Director, Calder & Roe

They made us set a confidence floor before anything went live. Claims below it never reach the agent, so my team never had to take a black box on trust.

a man with a beard and a black shirt

Henrik Sandvik

Head of Claims, Ashworth Mutual

They made us set a confidence floor before anything went live. Claims below it never reach the agent, so my team never had to take a black box on trust.

a man with a beard and a black shirt

Henrik Sandvik

Head of Claims, Ashworth Mutual

Their number was worse than the vendor's, and it was the one that survived. Payback moved from 2.9 months to 3.4 once exceptions were priced, and finance signed it.

photo of girl standing near gray wall

Nadia Okonjo

Financial Controller, Tarrant Logistics

Their number was worse than the vendor's, and it was the one that survived. Payback moved from 2.9 months to 3.4 once exceptions were priced, and finance signed it.

photo of girl standing near gray wall

Nadia Okonjo

Financial Controller, Tarrant Logistics

Bring us the case you cannot defend

The first conversation is 45 minutes. You leave with an accuracy band, an exception count and a payback figure you can put in front of a board, whether or not you retain us.

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