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AI model costs:
Each task matched to the right model

We helped a growing AI product cut unnecessary model spend and respond faster. Each task now goes to the model that suits it, repeated work is reduced, and cost is tracked by feature and workflow.

Industry: SaaS & TechnologyService: AI & AutomationUpdated

AI availability
24/7
Cost and usage tracking
Live
Oversight of sensitive cases
Human

Overview

Project
at a glance

Business
AI-enabled SaaS companyA growing SaaS business whose product relies on AI models across several features.
Partnership
AI cost and performance workWe handled discovery, UX, AI workflows, integrations, testing, deployment and ongoing improvement.
Goal
Lower AI cost, faster responsesKeep the product's AI features as capable as before, while spending less on models and making responses quicker.
What we built
Cost and performance layerA layer that measures model usage, sends each task to a suitable model, cuts repeated calls and reports cost by feature and workflow.

The challenge

What was getting
in the way

As more people used the product, AI costs became harder to predict. Expensive models were handling tasks that didn't need them, and some requests took longer than users expected.

The company didn't want to cut back what the AI could do. It wanted each task to use the right level of model, and it wanted to know exactly where cost and response time were coming from.

  • Rising model costs

    High-capability models were used even for simple requests.

  • Slow responses

    Long chains of processing steps kept users waiting.

  • No view of what drove cost

    The team could see the total bill, but not which features were behind it.

The solution

What
we built

  1. 01

    Measuring cost and response time

    We tracked model usage, token use, processing time, retries and AI activity for each feature.

    Input
    Usage, cost, response time
    Control
    Business rules
    Experience
    Simple for users
  2. 02

    Sending each task to the right model

    Lighter models now handle simple tasks. Stronger models are used for complex tasks, and only when they are needed.

    AI
    Context-aware
    Actions
    Model routing
    Review
    Human when needed
  3. 03

    Cutting repeated work

    Caching, better prompts, fewer unnecessary calls and trimmed context reduced avoidable model usage.

    Output
    Caching, fewer calls
    Tracking
    Visible
    Improvement
    Ongoing

Before and after

How the work
changed

Model choice

Before

One model for everything

Most tasks went to the same expensive model.

After

Routing by task

Each workflow uses the level of model it actually needs.

AI spend

Before

A monthly total only

The team had no breakdown of cost by feature.

After

Cost by workflow

Spend is broken down by feature and workflow, so it is easier to understand and control.

Response speed

Before

Long chains

Some requests went through processing steps they didn't need.

After

Leaner workflows

AI calls and context are cut back wherever possible.

Key features

What made it
useful

  • MODEL ROUTING

    The right model for each task

    The system picks a model based on how hard the task is, how risky it is and how fast the answer needs to be.

    Business impact

    Less wasted spend

  • COST ANALYTICS

    AI cost by feature

    The team can see which workflows and features use the most AI resources.

    Business impact

    Tighter budget control

  • RESPONSE SPEED

    Quicker AI workflows

    Fewer calls, better prompts and caching all help responses come back sooner.

    Business impact

    A better experience for users

Results

The business
difference

  1. VISIBILITY

    Better Cost Control

    A clear view of AI spend

    The team can see which workflows drive model spend, rather than just the monthly total.

    Before: Monthly BillAfter: Feature Detail

  2. SPEED

    Faster AI Responses

    Quicker responses

    Processing steps that weren't needed have been removed, so users wait less.

    Before: SlowerAfter: Optimised

  3. CONTROL

    More Efficient Model Usage

    Expensive models only where needed

    High-cost models are kept for the tasks that genuinely need them.

    Before: OverusedAfter: Task Based

Faster delivery

Built on tested foundations

Starting from these tested components saved setup time, so the work went into routing and cost tracking for this product and shipped sooner.

  • Secure access

    Our access controls keep the AI to the information and actions approved for each user and workflow.

  • AI workflow layer

    The workflow layer gave us one place to add model routing, caching and leaner prompts across the product's AI features.

  • Monitoring and feedback

    Tested monitoring tracks tokens, retries and response times for each feature, which gives the team its cost-by-feature view.

  • Human review

    A ready-made review step sends important or unusual cases to a person before any sensitive action is taken.

Trust and control

How we kept it
safe and reliable

  • 01

    Permissions

    The AI can only reach the information and actions approved for each user and workflow.

    ACCESS CONTROLLED
  • 02

    Human oversight

    Important or unusual cases can go to a person before any sensitive action is taken.

    HUMAN IN CONTROL
  • 03

    Activity tracking

    Key AI actions and their outcomes can be recorded, so the team can see what happened.

    TRACEABLE
  • 04

    Ongoing tuning

    Rules, prompts, workflows and controls can be adjusted as usage patterns change.

    ADAPTABLE

FAQ

Straight
answers

Have a different question? Ask it on a 30-minute call.

Book a call

Costs rose because expensive, high-capability models were handling almost every task, including simple requests that didn't need them. Long processing chains also slowed some responses. The team could see the monthly bill but not which features drove it, so there was no clear way to control spend as usage grew.

Find out where your AI budget goes

If your model bill keeps rising and you can't tell which features cause it, we can measure usage, route tasks to the right models and cut repeat calls without reducing what your product can do.