Momentum Chatbot

The Challenge

Employees spent an average of 37.5 minutes locating information across 68 regulatory documents spanning ~770 pages. Manual searches, fragmented knowledge, and dependency on specialists created operational bottlenecks and inconsistent responses about internal policies.

The Solution

Chatbot architecture with intelligent hybrid system: local FAQ with SpaCy + FuzzyWuzzy to resolve ~60% of queries instantly (zero cost), with OpenAI fallback for remaining cases. Complete REST API with JWT authentication, interaction logging, and Swagger documentation. Proof of concept validated with real regulatory database.

Architecture

• • Flask REST API with 7 documented endpoints
• • JWT authentication with automatic refresh (1h access, 30d refresh)
• • SpaCy pt_core_news_md for NLP and semantic similarity
• • FuzzyWuzzy for fuzzy FAQ matching (~80 Q&A pairs)
• • OpenAI API as intelligent fallback (~40% of queries)
• • Complete logging system for analytics
• • Rate limiting (100 req/min per user)
• • Interactive Swagger/OpenAPI documentation
• • Deploy-ready for Azure App Service

Metrics

• • Projected average latency: 2.5s (vs. 37.5 min manual search)
• • Estimated accuracy rate: 92-98% precision
• • ~60% queries resolved locally (zero cost)
• • Capacity: 530+ queries/month | 30+ users
• • 68 documents | ~770 pages | 211k tokens indexed
• • Projected savings: ~R$ 136k/year in technical hours

Differentiators

• • Hybrid architecture: ~60% local (SpaCy), ~40% OpenAI. Architecture decision that reduces costs without sacrificing quality.
• • Evolving FAQ: Local base grows with usage, reducing external API dependency over time
• • Automatic citation: Each response references specific standard (code + title)
• • Complete logging: All interactions recorded for analysis and continuous improvement
• • API-first: Integrable with any frontend or internal system

Results

• • Potential 99.9% reduction in query time
• • Estimated 8,278 hours saved/year
• • Democratization of regulatory knowledge
• • Elimination of specialist dependency for basic queries
• • Scalable and auditable knowledge base