Measure the failure mode first
We start with the behavior that needs to improve, the slices where it fails, and the metrics that decide release readiness.
Build smarter models, faster
Sython AI helps teams design, tune, evaluate, and operate LLM systems where quality, latency, cost, and governance all matter.
Engagements are scoped around concrete targets: fewer unsupported answers, tighter p95 latency, lower token spend, cleaner audit evidence, or safer rollout of high-risk workflows.
Core LLM service areas
LLM development and optimization
Architecture, model routing, serving optimization, and release planning for LLM systems.
Fine-tuning
Dataset curation, supervised tuning, adapter workflows, and rollout gates for domain-specific behavior.
LLM alignment
Preference-data strategy, reward modeling, and policy optimization when supervised tuning is not enough.
RAG and CAG engineering
Hybrid search, reranking, citation design, and context packing for systems that need grounded answers.
Evaluation and benchmarking
Golden sets, automated scoring, human calibration, and release gates for quality, latency, and cost.
Custom LLM specialization
Prompt, tool, retrieval, and model-routing systems tailored to domain workflows.
Guardrails and governance
Prompt-injection defenses, PII handling, moderation, policy gates, and audit-friendly controls.
Agentic workflows
Tool-using workflows with bounded autonomy, tracing, approval gates, and failure-mode testing.
How we work
Prefer the simplest passing architecture
Fine-tuning, retrieval, agents, and model routing are selected when benchmarks show they beat simpler baselines.
Make rollout observable
Delivery includes logging, quality gates, latency and spend budgets, rollback criteria, and clear owner handoffs.
Data governance and enterprise controls
We document sensitive-data handling, retention boundaries, traceability, and routing rules early so security and compliance stakeholders can review the system before live traffic.
Get in touch
Tell us about your model, your data, and the outcome you need to hit. We will come back with a concrete scope, practical evaluation gates, and a realistic timeline.