Custom LLM Fine-Tuning & Security Pipelines
A model trained on your domain, your tone, and your data — with enterprise-grade guardrails so it never goes off-script.
Why This Matters
Prompt engineering gets you 80% of the way. The last 20% — consistent domain vocabulary, proprietary reasoning patterns, strict output formatting, brand tone — requires fine-tuning. A fine-tuned model is also faster and cheaper to run at scale than heavy system prompts.
What Teams Use This For
- Customer support bot trained on your ticket history
- Legal document drafting model with your firm's style and clause library
- Medical coding assistant trained on ICD/CPT nomenclature
- Financial analyst model trained on your research methodology
- Code generation model for your internal framework and conventions
What You Receive
- Training data curation and cleaning pipeline
- Fine-tuning via OpenAI API, Together AI, or Hugging Face
- Before/after eval report (accuracy, consistency, latency)
- Guardrail layer (refusals, scope enforcement, PII redaction)
- Deployment-ready model endpoint with authentication
Project Packages
Fixed-price scopes with clear deliverables. No hourly billing surprises. Source code ownership transferred on all packages.
API Fine-Tune
- Training data curation
- OpenAI/Together AI fine-tune
- Eval report (before/after)
- Guardrail layer
- 30-day support
Domain Expert Model
- Large training dataset
- Custom eval benchmark
- PII redaction guardrails
- Deployment endpoint
- 60-day support
Enterprise Model
- Open-weight model (Llama/Mistral)
- Private VPC hosting
- Compliance-grade audit trail
- Ongoing retraining plan
- 90-day priority support
Stack Used
Proof of Delivery
Built production AI systems on Claude API, OpenAI, and open-weight models. QChat's multi-tenant architecture handles per-client model configuration. Fine-tuning projects include training data pipeline design, eval harness, and guardrail implementation.
Ready to start?
Send a brief description of your project and I'll reply within 24 hours with a scoped proposal — no obligation.
Email Your Requirements → hello@debasisbhattacharjee.com