LeeteLeeteAI · IoT
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Education & TrainingA training provider (3,000+ students) · Dongguan

AI teaching assistant for a training provider: halve curriculum costs, no more late-night Q&A

6×
Course production
-50%
Q&A workload
5×
Lead-gen content
3000+
Students served

Client Profile

Industry
Education & training
Scale
3,000+ students · 10 teachers
Current
Manual curriculum + after-class Q&A
Goal
Lower curriculum and Q&A costs

Pain Points

1

High curriculum costs

A course from outline to handouts to question bank takes weeks.

2

Q&A eats teacher time

Teachers drown in repeated questions and can't polish courses.

3

Slow lead-gen content

Ad copy, short videos and posters are improvised on demand.

Live Demo

Live demo · AI teaching assistant
Ready
Input
Student: What's the approach to this problem?
Consolelogs · stdout
$ 初始化演示管线…

How We Built It

01

AI teaching assistant

A knowledge-base-grounded assistant answers common questions and grades homework.

02

Course content generation

Input a topic to auto-generate outlines, handouts and question banks for review.

03

Batch enrollment content

Auto-generate enrollment copy, video scripts and poster text.

Not betting on one AI — combining the right few

For a real business scenario, we don't lock in a single technical path up front. We evaluate candidate paths on the same benchmark, then design a hybrid so each path does what it's best at.

General LLM API

Public-cloud models such as GPT-4o / Qwen / DeepSeek

  • ✓Out-of-the-box, minimal integration cost, cheap to start
  • ✕Limited generalization to vertical domains, unstable field-level accuracy, separate compliance design
Best for cold start and quick validation

Industry fine-tuned model

Domain fine-tuning of open-source models on industry data

  • ✓Grasps industry semantics, much higher accuracy, private deployment
  • ✕Needs labeled data plus ongoing training and upkeep
Best as the primary path for high-frequency traffic

RAG + rule engine

Retrieval-augmented knowledge plus business rule checks

  • ✓Highly targeted, explainable, best latency and cost
  • ✕Requires continuous data-loop investment
Best for fallback and high-certainty scenarios

Fusion, not selection

What we deliver is not a single model but a fused pipeline of primary path + semantic correction + graceful fallback: routine cases are handled by the industry model in seconds; low-confidence fields are re-understood by an LLM; on service anomalies the system degrades to a general API and flags manual review — achieving accuracy, cost, latency and controllability at once.

An explainable, degradable, evolvable AI pipeline

We treat AI engineering as a pipeline, not a black box: every step has clear responsibilities, inputs/outputs and fallbacks. The five-step pipeline plus four-layer architecture below is the technical skeleton.

L1

Ingestion & access layer

Multi-channel access with unified auth, idempotency and masking

Business APIsMobile / mini-programsFile upload / scanningAPI gateway · masking
L2

AI inference layer

Multi-path inference plus a confidence router switching by features

Industry fine-tuned modelMultimodal LLMRAG retrievalConfidence routing
L3

Business orchestration layer

Connecting results to real business flows with rule checks and closure

Business rule checksEntity / master-data matchingAmount / logic closureManual review tickets
L4

Data loop layer

Every online error flows back; models iterate monthly

Sample warehouseOnline labeling & error recallMonthly incremental fine-tuningDrift monitoring & alerts

Tech Stack

FastAPIvLLMLangChainRAGQwenGPT-4oTritonKubernetesPostgreSQLRedisMilvusDocker

Delivery Process

1

Workflow mapping

Mapped curriculum and Q&A flows.

2

Knowledge base

Structured course materials into a knowledge base.

3

Assistant launch

Assistant starts with basic Q&A.

4

Content generation

Added curriculum and enrollment content generation.

5

Iteration

Continuous assistant improvement from student feedback.

Before vs After

MetricBeforeAfter
Course production cycle3 weeks2 days
Teacher Q&A time3 hrs/day1.5 hrs/day
Enrollment content10/week50/week

“The AI assistant absorbs most repeated questions, so teachers finally have time for what really matters.”

— Mr. Yang · Principal · training provider

Where It Fits

Curriculum efficiency for training providers
Automated student Q&A
Bulk enrollment content generation

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