Test sets that reflect reality
Cases drawn from your own history, including the difficult ones, with agreed scoring and a clear pass mark before release.
Evaluation and cost control
The measurement layer that proves an AI system works, keeps it working and stops the bill running away.
Best for
- Teams whose AI spend is growing faster than usage
- Anyone needing proof of quality for a client or auditor
- Products where a wrong answer carries real cost
- Every change
- Scored before it ships
- Per use case
- Cost visibility and forecast
- Trend
- Quality tracked over time
What it is
Proof it works, and proof it is worth it.
A demo can look convincing on the one example someone chose. Evaluation is how you know whether a system is right often enough to trust with real work, and how you notice when a model update changes its behaviour.
Cost control sits alongside it. Token spend, retries and long context windows add up quietly, and the fix is usually design rather than a cheaper model.
What we do
The work, item by item.
Each engagement covers the same four areas, weighted to where your risk and value actually sit.
Automated scoring
Evaluation runs on every prompt, model or data change, with results recorded so quality is a trend rather than a memory.
Spend visibility
Cost tracked per use case, per team and per interaction, so you can see where the money goes and forecast it properly.
Tuning and routing
Prompt and context reduction, caching and model routing, so the same outcome costs less without hurting quality.
How we implement
The steps, and what you get at each one.
Fixed deliverables, agreed durations and a decision point at the end of every step.
- 01
Baseline
1 week
We agree what good looks like for each system, build the first test set from real cases and record where it stands today.
Deliverables
- Scoring criteria
- Baseline test set
- Current quality score
- 02
Instrument
2 to 3 weeks
Evaluation and cost tracking are wired into the release process, so nothing ships without a score attached to it.
Deliverables
- Automated evaluation runs
- Cost per interaction tracking
- Release gate
- 03
Optimise
ongoing
We tune prompts, context and routing against the numbers, then review quality and spend together each quarter.
Deliverables
- Cost reduction roadmap
- Quarterly quality review
- Regression alerts
Related
Often paired with.
Next step
Talk it through with the team who would do the work.
A 30 minute call on evaluation & cost control, what it would take in your business, and whether it is worth doing at all.