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Case Study · Research

Case Study: Consulting Firm Cuts Research Time 65% with Cited Briefings

How a 15-person strategy boutique shipped the AI research assistant workflow — sub-query planning, web search, and footnoted Markdown briefings for client work.

ConsultingNorthbridge Strategy (fictional)Stack: Claude Sonnet, Tavily Search, Python, Notion export
ResearchConsultingCitationsAgentBriefing
Edited by The AIKnowHub team · Editorial team

Results

Median memo research time

2 hr

Cost per briefing

$1.20

Partner acceptance rate

78%

Hallucinated claims caught

0 shipped

Background

Northbridge Strategy produces 20–30 research memos monthly for PE and corporate clients. Associates burned half a day on search, skim, and synthesis before writing.

Pipeline

From Build an AI Research Assistant:

Research question
  → Planner: 4-8 sub-queries
  → Tavily per sub-query (top 5)
  → Fetch top 3 pages per sub-query
  → Haiku: rank source relevance
  → Sonnet: cited briefing + Limits section
  → Associate verification (required)
  → Notion export

Quality gates

  1. Minimum 8 unique source URLs
  2. No claim without inline citation
  3. Limits section lists uncovered angles
  4. Partner review before client send

Results (10 weeks)

MetricBeforeAfter
Median research time6 hr2 hr
Memos / associate / week1.22.4
Partner rework rate41%22%
Cost per memo~$1.20

Takeaway

Research automation works when citations are mandatory and humans verify before client delivery. Speed without sources is liability in consulting. Blueprint: workflow guide.

Lessons learned

  • 01

    Planner step with 4-8 sub-queries beat one-shot search — coverage improved immediately.

  • 02

    Limits of this briefing section was mandatory — partners trusted honesty over completeness theater.

  • 03

    Fetch full page text for top 3 URLs only — fetching everything burned tokens and time.

  • 04

    Associates still spent 45 min verifying citations — AI shortened search, not accountability.

  • 05

    Sonnet for synthesis, Haiku for sub-query ranking — predictable cost per memo.

Frequently asked questions

Perplexity was fast but citation format did not match client deliverable templates. Custom pipeline output matched Notion export structure.