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United KingdomPublic sector2025 – ongoing

HM Treasury

HERMeS internal document retrieval assistant

HM Treasury reported around 20-30 weekly users of its internal document chatbot

In progressCompany's own claimOfficial ↗

Problem

Treasury staff searched SharePoint with keywords and read multiple documents to locate relevant information. This made finding internal guidance time-consuming.

Approach

The Treasury's Data Hub built HERMeS using retrieval-augmented generation over internal SharePoint documents. It retrieved relevant passages, generated answers and linked to source documents. Staff had to validate answers against those documents.

Results

Circa 20-30staff using HERMeS at least weekly, according to HM TreasuryCompany's own claim[1]

Takeaway

HERMeS narrowed document searches and supplied references for checking answers. Reported weekly use did not quantify time saved.

Categories

Innovation type
Process innovation
AI technology
Generative AI
Evidence
Company's own claim

Sources

  1. HMT: HERMeS (HMT's Excerpt Retrieval Messaging System)
    GOV.UK3 Jun 2025Company publication

Source summaries

[1]GOV.UK3 Jun 2025

HM Treasury described an internally built chatbot grounded in SharePoint documents. Around 20-30 staff used it at least weekly, with human validation required for generated answers.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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