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GENERATIVE AI DEVELOPMENT

Generative AI that ships to production.

A generative AI demo takes a weekend; a product your team relies on takes engineering. Dezvo builds LLM applications end to end — assistants, copilots, content generation, and document automation — with the structured outputs, evals, and guardrails that separate production systems from prototypes.

See Our Work
What we work with
  • Claude, GPT, Gemini & open-source
  • RAG + vector search
  • Structured output & tool use
  • Eval suites & guardrails
  • Vercel AI Gateway / LiteLLM routing
WHAT IS GENERATIVE AI DEVELOPMENT?

LLMs turned into working software.

Generative AI development is the engineering discipline of building products on large language models: choosing and routing models (Claude, GPT, Gemini, or open-source), grounding them in your data with retrieval, constraining them with structured outputs and guardrails, and measuring them with evaluation suites so quality doesn't silently regress.

The difference between a demo and a product is everything around the model — retrieval quality, prompt versioning, cost controls, fallback behaviour, and monitoring. That surrounding system is what Dezvo builds.

WHAT WE BUILD

Four shapes of generative AI product.

AI assistants

Customer-facing and internal assistants grounded in your docs and data — on web, WhatsApp, Slack, or in-app. Escalation to humans when confidence drops.

AI copilots

In-product copilots that draft, summarise, and act inside your existing software — embedded in the workflow, not a chat window bolted on the side.

Content generation

Product descriptions, reports, emails, and marketing copy at scale — brand-voice tuned, template-constrained, human-reviewed where it matters.

Document automation

Contracts, invoices, and forms parsed, classified, extracted, and drafted — LLM understanding plus deterministic validation on every field.

HOW WE BUILD

The engineering that keeps it reliable.

Model routing

Vercel AI Gateway or LiteLLM: cheap models first, escalation on confidence, provider fallback on outage. No single-vendor lock-in.

Structured output

JSON-schema-constrained responses and tool calling — so downstream code consumes typed data, not free text that breaks parsers.

Eval-driven quality

A frozen test set scored on every deploy. Accuracy, latency, and cost tracked across prompt changes and model upgrades.

Guardrails

Input sanitisation, output filtering, PII redaction, and prompt-injection defence — before anything customer-facing ships.

FAQ

Common questions, answered.

If your question isn't here, message us — usually same-day reply.

Anthropic Claude, OpenAI GPT, Google Gemini, and open-source models (Llama, Mistral) via Together or Replicate — usually routed through Vercel AI Gateway or LiteLLM so you can switch providers without a rewrite. Model choice is a benchmark result on your data, not a preference.

A grounded assistant or document-automation pipeline typically ships in 4-8 weeks. In-product copilots run 8-14 weeks because they integrate with your existing codebase. Every project starts with a 1-week spike that proves feasibility on your real data before you commit to the full build.

Four layers: retrieval grounding (the model answers from your documents, with citations), structured output (constrained formats leave less room to invent), confidence thresholds (uncertain answers route to a human), and eval suites that measure factuality on a frozen test set every deploy. No system is zero-hallucination; ours are measured and bounded.

Your data is never used to train third-party models — we use zero-retention API tiers, and self-hosted open-source models where regulation demands it. PII redaction runs before prompts leave your infrastructure, and we sign NDAs and DPAs as standard.
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