Ship LLM apps
with confidence.
LastMile is the full-stack developer platform to debug, evaluate & improve AI applications. Fine-tune custom evaluator models, set up guardrails and monitor application performance.
AutoEval
Custom metrics for your application
AutoEval enables fine-tuning blazing-fast evaluator models customized to your eval criteria.
Upload & manage application data, such as input/output trace data
Generate synthetic labels for your application data by defining your evaluation criteria as a prompt, and labeling with LLM Judge + human-in-the-loop.
Fine-tune a small evaluator model distilled from the labeled dataset. Use this custom metric for both offline evals and online guardrails.
Eval-driven AI development
We are determined to make GenAI development more science than art. AutoEval comes batteries-included with evaluation metrics for RAG and multi-agent AI applications, as well as a fine-tuning service to design your own evaluators.
Meet alBERTa
A powerful small language model designed for evaluation tasks
Small-
400M params
Fast-
300ms inference
Efficient-
Runs on CPU
alBERTa is a versatile 400M parameter entailment model that generates a numeric score for evaluation tasks like faithfulness.
Its small size means it can run inference in less than 300ms, be deployed on CPU, and be fine-tuned efficiently for custom evaluation tasks.
Realtime Guardrails
Guardrails are just fast online evaluators in your app runtime. Use our evaluators for real-time checks on hallucinations, toxicity, safety, or custom criteria.
Secure & Private
Maintain complete control over your data plane by deploying the LastMile platform within your VPC.
Join the mission
Talks & Workshops
Small Models,
Big Impact
We provide specialized small language models for discrete tasks, which you can easily personalize, fine-tune and run efficiently on your own infrastructure.