ROBERT T.
E-Learning / EdTech — UK
Client Profile
Industry
E-Learning / EdTech (UK)
Size
85,000+ active students, 850+ courses across 15 subjects, 120+
instructor partners
Business Mode
Freemium model with 12,000+ premium subscribers
($45/month), generating $6.5M ARR
Challenge
68% dropout rate costing $4.2M annually, 8,500+ monthly
support queries
Business Problem
→Students couldn’t quickly find relevant course materials – average search
took 8-12 minutes
→ Course dropout rate of 68% (only 32% completion) due to lack of
personalized guidance
→ Tutors spent 18-25 hours weekly answering repetitive conceptual
questions
→ Course content siloed by subject – students struggled connecting
concepts across topics
→ Support queries averaged 8,500 monthly with 36-hour response time,
causing frustration
→ No adaptive learning path – all students followed same curriculum
regardless of skill level
→ Premium conversion rate stuck at 8.5%, limiting revenue growth
Objective
Transform student experience through AI-powered personalization:
Increase course completion rate from 32% to 65%+
Reduce student support queries by 70% through intelligent self-service
Free up 80% of tutor time for high-value coaching vs answering basic
questions
Double premium conversion rate from 8.5% to 17%
Enable cross-topic learning and knowledge synthesis
Provide 24/7 AI tutoring in 5 UK languages
Automation Details
Content Ingestion
Automated processing of 850+ courses – video
transcription, PDF parsing, creating 8.5M searchable chunks
Semantic Search
Multi-modal retrieval combining text, video
transcripts, diagrams, and code snippets
Contextual Understanding
Tracks student progress across 850
courses to provide context-aware answers
Socratic Method
AI doesn’t just give answers – asks guiding questions
for 40% of interactions to promote deeper understanding
Example Generation
Dynamically creates practice problems tailored to
student level (generated 120,000+ unique problems in first 6 months)
Cross-Topic Synthesis
Identifies connections across subjects (“This
physics concept uses the calculus you learned in Math 201″)
Multilingual Processing
NLP pipeline handles code-switching (Hindi-
English mix) common in UK education
Adaptive Learning
ML model trained on 2M+ student interactions
adjusts difficulty across 12 skill dimensions
Proactive Intervention
Identifies struggling students (3+ consecutive
wrong answers) and offers targeted help
Tutor Dashboard
Real-time insights showing which students need
human intervention with AI-suggested coaching strategies
Knowledge Gap Detection
Analyzes 8,500+ monthly questions to
identify curriculum gaps, informing content creation roadmap
Solution Overview
→Built comprehensive AI-powered study companion with RAG
architecture
→ Personalized AI tutor understanding each student’s complete learning
journey (850+ courses, 12,000+ video lessons)
→ Instant answers to questions based on course materials, lecture videos,
textbooks, and previous student interactions
→ Intelligent recommendations for related topics, prerequisite concepts,
and advanced material
→ Adaptive difficulty engine adjusting problem complexity based on real-
time performance across 12 skill dimensions
→ Multi-language support (Hindi, English, Tamil, Telugu, Marathi) with
code-switching capability
→ Study buddy features including exam preparation, doubt solving,
concept explanations with examples
→ Progress tracking dashboard with skill maps, weak area identification,
and personalized study plans
Technology Stack
LLM
Claude 3.5 Sonnet via Anthropic API for educational content,
GPT-4 for math problem solving
RAG Framework
LangChain with custom education-specific retrieval
chains
Vector Database
ChromaDB (self-hosted) with 8.5M+ embeddings
covering all course content
Embeddings
Cohere multilingual embeddings for 5-language support
Backend
Python 3.11, Streamlit for rapid prototyping, FastAPI for
production endpoints
Frontend
React Native mobile app (iOS/Android), Next.js web app
Analytics
Mixpanel for product analytics, custom learning analytics
pipeline
Infrastructure
Google Cloud (GKE, Cloud Run, Firestore), Firebase for
real-time features
Database
MongoDB for user profiles and learning history, PostgreSQL
for course metadata
Video Processing
Whisper API for lecture transcription, custom
timestamp alignmen
Outcome & Impact
→ Completion Revolution: Course completion rate skyrocketed from 32%
to 71% (122% improvement), retaining 33,000+ more students
→ Engagement Explosion: Daily active users increased 145% – students
now spending 47 minutes daily (up from 19 minutes)
→ Support Deflection: Student queries handled by AI increased to 74%
(6,290 of 8,500 monthly)
→ Tutor Efficiency
: Tutor time on basic questions reduced by 82% (from
23 hours to 4 hours weekly)
→ Premium Conversion: Free-to-paid conversion increased from 8.5% to
22% (159% improvement) – AI tutor cited as #1 reason
→ Revenue Impact: ARR increased from $6.5M to $14.2M (118% growth)
within 14 months
→ Student Success: Test scores improved average 23% across all subjects,
with 89% of users reporting increased confidence
→ Learning Speed: Students reaching proficiency 35% faster with AI-
guided adaptive paths
→ Churn Reduction: Monthly churn rate dropped from 11% to 4.2%,
increasing customer lifetime value by 2.6x
→ Language Impact: 18,000+ students now learning in regional
languages (previously English-only barrier)
→ Scale Achievement: Supporting 85,000 concurrent students with tutor
capacity that previously maxed at 12,00
Why This Matters for Similar Clients
EdTech Platforms
Any online learning platform with 10,000+ students
can increase completion rates 2-3x and conversion rates 2x through
personalized AI tutoring
Universities
Higher education institutions can provide 24/7 AI teaching
assistants for 50,000+ students, reducing office hours burden by 70%
Language Learning
Apps teaching 100,000+ students can provide
conversational practice that adapts to individual learning pace
Professional Certifications
Technical certification platforms can
reduce dropout from 75% to 30% through intelligent content
recommendatio
Course Completion Increased
Premium Conversion Grew
ARR Scaled