Knowledge and context · Model routing

The right model for every question

Lexi routes each task to the model best suited to it, from quick lookups to deep analysis. Every model runs inside a secure AWS environment, so your data never leaves the platform.

How it works

Model routing built for real business questions

Quick answers fast, hard ones deeper

Simple lookups go to fast, efficient models and multi-step analysis goes to the strongest reasoning models. You get answers sooner, and they cost less to run.

Access to leading models

As new models arrive, Lexer tests them against your question set and adopts the ones that answer better. Your team gets the improvement without changing a thing.

The same guardrails on every model

Every model runs inside a secure AWS Bedrock environment. No personal information goes into AI processing, and nothing is sent to an external model provider.

Under the hood

How routing works

An AI gateway sits between Lexi and the models it uses. Each task is matched to the best-suited model by the speed, reasoning depth or writing it needs. Because figures come from governed metrics, answers stay consistent when the model underneath changes.

Routing Each task matched to a model by speed, depth and cost

‍Models Leading models available through AWS Bedrock

‍Testing Every model change checked against a golden question set

‍Privacy No PII in AI processing and no data sent to external providers

‍Regions Runs in AU or US regions

SOC 2 certified, GDPR and CCPA compliant
Your data never leaves the platform
Approvals before anything goes live
Every action logged and reversible
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Questions about AI models

Which AI model does Lexi use?

Several. Lexi routes each task to the model best suited to it, using leading models available through AWS Bedrock, so you never have to pick one.

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Will answers change when the model changes?

The numbers won't. Lexi calculates figures from governed metrics, and every model change is tested against a golden question set before it reaches you.

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Is our data sent to OpenAI or Anthropic?

No. Models run inside Lexer's AWS Bedrock environment. Your data never leaves the platform and no personal information is used in AI processing.

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Can we choose our own model?

Lexi chooses for you, so every task gets the right balance of speed, depth and cost.

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Related resources

Check out the following blogs and case studies to learn more about how Lexer helps retailers know their customers and grow their business.
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