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Build with AI — From Pilot to Production Playbook

Senior AI Engineer9 min readPublished Updated

Every company has AI pilots. Few have production AI features that customers use daily. Here's how to close that gap — LLM integration, RAG, evals, guardrails, and cost control.

AI prototype evolving into a production system
#AI-development#LLM-integration#RAG#AI-agents#production-AI

Every company has AI pilots. Few have production AI features customers actually use daily. The gap between pilot and production is enormous: reliability, latency, cost, compliance, and continuous iteration.

Here's how we help teams close that gap.

The 5-stage AI integration journey

Stage 1 — Use case selection Pick a use case with:

  • Clear business value
  • Available data
  • Manageable risk
  • Reasonable scope (6–12 weeks to launch)

Stage 2 — Architecture Design the stack:

  • LLM choice (GPT-4, Claude, open-source)
  • RAG layer (if needed)
  • Orchestration (LangChain, LlamaIndex, custom)
  • Guardrails (prompt injection, PII, output filters)
  • Monitoring (latency, cost, quality)

Stage 3 — Evaluation Build eval harnesses:

  • 300–500 test cases
  • Rubric scoring (accuracy, tone, safety)
  • Automated runners
  • Regression tracking

Stage 4 — Production deployment

  • Latency targets (<2s for most use cases)
  • Cost per action tracking
  • Fallback strategies
  • Human handoff design
  • Error handling

Stage 5 — Continuous improvement

  • Monitor drift
  • Retrain or re-prompt
  • Add capabilities
  • Expand use cases

What we deliver to clients

  • Production-ready AI features (chatbots, assistants, agents)
  • Eval harnesses for continuous quality tracking
  • Cost engineering to protect margins
  • Guardrails for compliance
  • Handoff design for reliability

AI integration patterns

RAG — Anchors LLMs to your data

Fine-tuning — Customizes model behavior

Prompt engineering — Optimizes instructions

Agents — Multi-step autonomous tasks

Hybrid — Combining patterns as needed

Common AI integration mistakes

  • Shipping pilots without evals
  • Ignoring cost per action
  • No guardrails
  • No human handoff
  • Treating AI as deterministic
  • No drift monitoring

What "done" looks like

  • Feature live in production
  • Evals running on every change
  • Cost per action within budget
  • Human handoff working
  • Drift monitoring active
  • Roadmap for iteration

Key takeaways

  • AI pilots are easy; production is hard
  • Eval harnesses are non-negotiable
  • Cost per action must be tracked
  • Guardrails prevent prompt injection
  • Human handoff is a feature, not a fallback

Further reading

About the author

Senior AI Engineer →

Senior AI Engineer · Quality Assurance Labs

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