General Media Company

Lab Pilot: Stringer Impact Overview

Measuring how stringer-sourced local knowledge improves AI accuracy, speed, and trust.

Stringer Coverage & Hallucination Heat Map

Hallucination rate = % of AI responses containing at least one major factual inaccuracy.

Before Stringer (Baseline)
Avg Hallucination Rate: 18.7%
State 01 - Hallucination rate 28.0%State 02 - Hallucination rate 17.0%State 04 - Hallucination rate 23.0%State 08 - Hallucination rate 35.0%State 12 - Hallucination rate 19.0%State 13 - Hallucination rate 36.0%State 18 - Hallucination rate 37.0%State 20 - Hallucination rate 15.0%State 23 - Hallucination rate 38.0%State 25 - Hallucination rate 16.0%State 27 - Hallucination rate 22.0%State 34 - Hallucination rate 29.0%State 37 - Hallucination rate 24.0%State 38 - Hallucination rate 13.0%State 40 - Hallucination rate 19.0%State 42 - Hallucination rate 25.0%State 46 - Hallucination rate 37.0%State 48 - Hallucination rate 15.0%State 56 - Hallucination rate 11.0%State 09 - Hallucination rate 24.0%State 29 - Hallucination rate 28.0%State 54 - Hallucination rate 33.0%State 17 - Hallucination rate 20.0%State 35 - Hallucination rate 18.0%State 05 - Hallucination rate 12.0%State 06 - Hallucination rate 29.0%State 10 - Hallucination rate 13.0%State 11 - Hallucination rate 30.0%State 15 - Hallucination rate 14.0%State 19 - Hallucination rate 26.0%State 21 - Hallucination rate 32.0%State 24 - Hallucination rate 27.0%State 26 - Hallucination rate 33.0%State 28 - Hallucination rate 11.0%State 30 - Hallucination rate 17.0%State 33 - Hallucination rate 12.0%State 36 - Hallucination rate 35.0%State 39 - Hallucination rate 30.0%State 41 - Hallucination rate 36.0%State 47 - Hallucination rate 26.0%State 49 - Hallucination rate 32.0%State 51 - Hallucination rate 38.0%State 53 - Hallucination rate 16.0%State 55 - Hallucination rate 22.0%State 31 - Hallucination rate 34.0%State 45 - Hallucination rate 20.0%State 16 - Hallucination rate 31.0%State 32 - Hallucination rate 23.0%State 50 - Hallucination rate 21.0%State 22 - Hallucination rate 21.0%State 44 - Hallucination rate 31.0%
After Stringer (With Stringer Data)
Avg Hallucination Rate: 6.3%
State 01 - Hallucination rate 8.8%State 02 - Hallucination rate 3.9%State 04 - Hallucination rate 8.0%State 08 - Hallucination rate 12.2%State 12 - Hallucination rate 6.6%State 13 - Hallucination rate 11.6%State 18 - Hallucination rate 10.9%State 20 - Hallucination rate 5.3%State 23 - Hallucination rate 10.3%State 25 - Hallucination rate 4.6%State 27 - Hallucination rate 4.7%State 34 - Hallucination rate 8.1%State 37 - Hallucination rate 7.4%State 38 - Hallucination rate 3.0%State 40 - Hallucination rate 6.6%State 42 - Hallucination rate 6.7%State 46 - Hallucination rate 10.9%State 48 - Hallucination rate 5.3%State 56 - Hallucination rate 3.9%State 09 - Hallucination rate 7.4%State 29 - Hallucination rate 8.8%State 54 - Hallucination rate 9.5%State 17 - Hallucination rate 6.0%State 35 - Hallucination rate 3.3%State 05 - Hallucination rate 3.2%State 06 - Hallucination rate 8.1%State 10 - Hallucination rate 3.0%State 11 - Hallucination rate 7.5%State 15 - Hallucination rate 3.0%State 19 - Hallucination rate 6.1%State 21 - Hallucination rate 10.2%State 24 - Hallucination rate 9.4%State 26 - Hallucination rate 9.5%State 28 - Hallucination rate 3.9%State 30 - Hallucination rate 3.9%State 33 - Hallucination rate 3.2%State 36 - Hallucination rate 12.2%State 39 - Hallucination rate 7.5%State 41 - Hallucination rate 11.6%State 47 - Hallucination rate 6.1%State 49 - Hallucination rate 10.2%State 51 - Hallucination rate 10.3%State 53 - Hallucination rate 4.6%State 55 - Hallucination rate 4.7%State 31 - Hallucination rate 8.9%State 45 - Hallucination rate 6.0%State 16 - Hallucination rate 10.8%State 32 - Hallucination rate 8.0%State 50 - Hallucination rate 5.3%State 22 - Hallucination rate 5.3%State 44 - Hallucination rate 10.8%
Stringer Network Coverage
Active Stringers529
Locations Covered1,247

Query Response Comparison

Real examples of AI responses with vs. without stringer data.

User QueryWithout Stringer DataWith Stringer Data
What caused the offshore wind turbine incident in Martha Vineyard?

The turbine incident was likely caused by extreme weather conditions in the area.

Hallucination: High

A blade on Turbine #14 broke during routine operation on May 28 due to a maintenance issue in the pitch control system.

Hallucination: NoneSource: Harbor permit records
Was the MBTA Green Line suspended today?

No, the Green Line is currently operating on a normal schedule.

Hallucination: Medium

Yes, service between Government Center and North Station was suspended due to a signal problem as of 3:15 PM.

Hallucination: NoneSource: MBTA rider alert
Did the town council pass the budget override?

Yes, the town council approved the budget override in a unanimous vote.

Hallucination: High

No, the budget override failed 4-5 in the town council meeting on May 21. Mayor issued remarks afterward.

Hallucination: NoneSource: Meeting minutes

Breaking News: Speed & Accuracy

Impact of stringers on time-to-verify and first-report quality.

Avg Time to Verify2h 47m → 28m
First Accurate Report Filed1h 52m → 19m
Accuracy of First Report62% → 92%
StoryBeforeWith StringerImprovement
Ground-truth community alerts in Fresno, CA -3h 10m / 61%22m / 95%+88% / +34%
Verify municipal disruption signals in Fresno3h 10m / 61%22m / 95%+88% / +34%
Ground-truth community alerts in Redding, CA 3h 10m / 61%22m / 95%+88% / +34%
Verify municipal disruption signals in Reddin3h 10m / 61%22m / 95%+88% / +34%
Submitted: 1 · Approved: 0 · In Progress: 0

Overall Pilot Impact (30 Days)

Hallucination Rate Reduced
18.7% → 6.3%
66% improvement
Accuracy Score Improved
62% → 92%
+38% improvement
Avg Time to Verify
2h 47m → 28m
4.8x faster
Reader Trust Signal
+27%
+27% increased trust