Language-model engineering
Large language model development services
Zactra helps organizations select, adapt, evaluate and integrate language models for practical products and workflows.
Direct answer
What you should know
LLM development involves more than selecting a model. Zactra designs the data, prompts, retrieval, tools, evaluations, permissions, application experience and operational controls needed for reliable production use.
Service scope
- Model and provider evaluation.
- Prompt and system-instruction design.
- Fine-tuning assessment and implementation.
- Retrieval and knowledge grounding.
- Safety, privacy and access controls.
- Latency, quality and cost optimization.
Choosing the right approach
Many use cases do not require training a model from scratch. The best approach may be prompt design, retrieval, tool use, fine-tuning or a smaller specialized model depending on quality, privacy, latency and cost requirements.
Evaluation first
A representative evaluation set is used to compare models and system versions against task accuracy, groundedness, refusal behavior, tone, speed and cost.