Customer support

AT&T · H2O.ai

Vendor-reportedTelecomIn productionEnterpriseLLM

Vendor-reported. The customer is named and the numbers are quoted from the source page, but the account comes from the vendor. No independent confirmation.

Reported by h2o.ai (vendor self-report). Checked against the source page on 2026-09-06. 4 of 4 figures below appear on that page word for word.

The problem

Extracting value and insights from a vast amount of recorded, transcribed, and summarized customer call interactions efficiently and cost-effectively.

What was deployed

Vendor
H2O.ai
Products
H2O.ai’s Danube 1.8B, H2O LLM Studio
Models
GPT-4, Llama, Danube
Technique
LLM
Build or buy
Bought and customised
Deployment
Hybrid
Data used
recorded, transcribed, and summarized interactions from 15 million customer calls annually
Scale
15 million customer calls annually

What changed

Each row is quoted from the source. Figures we could not find on the page in those words are marked — they are kept, not deleted, so you can judge them.

Cost Savings

AT&T Achieves 90% Cost Savings with Fine-Tuned Small Language Models

Quoted word for word from the source · round percentage, no baseline given

Latency

75% Latency improvement

Quoted word for word from the source · round percentage, no baseline given

91%Accuracy

The ensemble of small language models achieved 91% accuracy

Quoted word for word from the source

35% of the previous solutionCostsfrom previous solution

reduced costs to 35% of the previous solution

Quoted word for word from the source

Processing time

a substantial reduction in processing time

Quoted word for word from the source

Transcript processing capacity

increased transcript processing capacity

Quoted word for word from the source

ROI as stated: proven ROI

Sources

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