Warwickshire food-mapping AI trails simpler method: 63% versus 95%

Warwickshire’s LLM achieved 63% classification accuracy versus 95% for a simpler method. Faster food-access mapping remains intended; improved food access is not established.

AI system

System

Locally hosted Llama 2 business-classification proof of concept

Model

Not assessed

Release

Not assessed

Application developer

Warwickshire County Council (proof-of-concept implementation)

Role

Not assessed

Configuration

Not assessed

Inputs and outputs

Not assessed

Autonomy

Not assessed

Workflow

A locally hosted LLM classified businesses but underperformed a simpler method.

Human oversight

Not assessed

Relation to AI

The LLM classified businesses by size and food availability. The intended savings in staff time and improvements in food access remain unproven.

AI contribution

The LLM classified businesses by size and food availability. The intended savings in staff time and improvements in food access remain unproven.

Benefits

Outcome identifiers

Not assessed

Benefit

Warwickshire’s LLM achieved 63% classification accuracy versus 95% for a simpler method. Faster food-access mapping remains intended; improved food access is not established.

Category

Reduced Task Time

Status

Intended benefit

Beneficiary groups

Organizations. People.

Beneficiaries

Not assessed

Reach

Not assessed

Distribution and access

Not assessed

Duration

Not assessed

Expected?

Yes

Costs and harms

Not assessed

Measurement

Studies

Not assessed

Study design

Not assessed

Measurement

Not assessed

Setting and sample

Not assessed

Measures

Not assessed

Comparison

Not assessed

Results

Not assessed

Additional value from AI

Not assessed

Limitations

Not assessed

Denominators

Not assessed

Materials for replication

Not assessed

Money

Kind of value

Not assessed

Amount

Not assessed

Currency and prices

Not assessed

Period and unit

Not assessed

Realization

Not assessed

Recipients and payers

Not assessed

Gross or net

Not assessed

Included costs

Not assessed

Comparison

Not assessed

Method

Not assessed

Return and payback

Not assessed

People and places

Participants

Developer: Warwickshire County Council (proof-of-concept implementation). Operator: Warwickshire County Council.

Jurisdictions

Benefit: Warwickshire, United Kingdom.

Ownership and control

Not assessed

Dependencies

Not assessed

Cross-border connections

Not assessed

Geopolitical implications

Not assessed

Follow-up

Conditions for replication

Further development and comparative testing would be needed. Conditions sufficient for a beneficial outcome remain unknown.

Replication attempts

Not assessed

Later findings

Not assessed

Availability

Not assessed

Institutional decision

Not assessed

Grounds

Not assessed

Action and result

Not assessed

Success criterion

Not assessed

Evidence

Source numbers

AIBD-0577-source-0001

Citations

Numbered references below.

Language

Not assessed

Source relationships

Operator

Original evidence

Not assessed

Access and versions

Not assessed

Supported findings

Not assessed

Evidence strength

Not assessed

Missing evidence

Not assessed

Grades

Assessed benefits

Organizations. People.

Depth

Not assessed

Reasons

Organizations: Staff time savings remain intended. The unfavorable accuracy and processing results do not establish an operational improvement. People: Residents with limited access to healthy food are intended beneficiaries. Improved food access remains unproven.

Observed or intended

Intended benefit

Rubric

Not assessed

Assessor and date

Not assessed

Alternative assessments

Not assessed

Fill

The deployer's account

Entry details

Kind

Not assessed

Field

Food access and local government analysis.

Purpose

Reduce manual search work when mapping access to affordable, nutritious food.

Dates

Source published: 3 February 2025. Updated: 22 October 2026.

Stage

Not assessed

Version

SHA-256: 565e1cfa5241…

References

Other identifiers

LGA AI case-study bank. LGA-031.

Category mappings

Not assessed

Brief

Not assessed

Revisions

1 revisions. Latest: 22 October 2026.

Sources

  1. Report Deployer

    Warwickshire County Council internal pilot evaluation, published by the Local Government Association, February 3, 2025. The account provides no independent outcome evaluation.