LLM Cost Optimization

LLM Cost Optimization Services for Enterprise AI

Relevance Lab reduces LLM cost management overhead through model routing, caching, token efficiency and inference cost optimization — built around your actual LLM spend management and unit economics.

20-40%
Typical LLM inference cost reduction
400+
Cloud specialists
200+
Cloud & data implementations
The LLM Cost Optimization Lifecycle
  • Baseline Token & Inference SpendToken usage and inference spend broken out by model, application and use case, across every LLM provider and self-hosted deployment in use.
  • Optimize Model Routing & CachingModel routing that sends each request to the cheapest model capable of handling it, plus prompt and response caching to avoid redundant calls.
  • Manage Context & Token EfficiencyPrompt engineering and context-window management that reduces token consumption per request without degrading output quality.
  • Govern LLM Spend with Unit EconomicsCost-per-request and cost-per-user unit economics tracked and governed so LLM spend scales predictably with usage, not unpredictably with it.
Token & Inference Cost Specialists

Quick answerLLM cost optimization is the practice of reducing the cost of running large language model workloads — through model routing, prompt/response caching, token and context efficiency, and inference cost management — while keeping output quality where it needs to be. Relevance Lab delivers LLM cost optimization as a managed practice across every major model provider.

LLM Cost Optimization, Explained

Turning token spend into a managed, predictable cost

LLM cost is driven by model choice, token count and call volume in ways that don't map cleanly onto traditional compute cost optimization. A single inefficient prompt pattern, replicated across millions of requests, can quietly become one of the largest line items in a company's AI spend.

Relevance Lab runs LLM cost optimization as its own discipline — routing requests to the right model, caching aggressively, tightening context usage, and tracking unit economics so LLM spend scales predictably with usage.

What an LLM cost optimization engagement gets you

  • Model routing that matches task complexity to model cost
  • Prompt and response caching that cuts redundant calls
  • Context and token efficiency tuning
  • Cost-per-request and cost-per-user unit economics
Where LLM Spend Gets Wasted

The LLM cost problems optimization solves

LLM cost waste compounds at request volume — small inefficiencies scale into real money fast.

Every request hits the biggest model

Simple classification or extraction tasks route to the same expensive model as complex reasoning tasks.

No caching for repeated calls

Identical or near-identical prompts get sent to the model again and again, paying full price every time.

Bloated context windows

Full conversation history and unnecessarily large retrieved context get sent on every call, driving up token cost.

No cost-per-request tracking

Without unit economics, teams can't tell whether an LLM-powered feature is sustainable as usage scales.

No cost attribution by feature

LLM spend gets lumped into one line item instead of being attributed to the specific feature or product driving it.

Inference infrastructure left unoptimized

Self-hosted or fine-tuned model inference runs on unoptimized infrastructure, leaving GPU efficiency gains on the table.

Our LLM Cost Optimization Services

Four pillars of a Relevance Lab LLM cost optimization engagement

Each pillar can stand alone or run together as a continuous, managed practice.

01

Baseline Token & Inference Spend

Token usage and inference spend broken out by model, application and use case, across every LLM provider and self-hosted deployment.

  • Token & inference spend audit
  • Cost attribution by feature & use case
  • Provider & model spend comparison
02

Optimize Model Routing & Caching

Model routing that sends each request to the cheapest model capable of handling it, plus prompt and response caching.

  • Cost-aware model routing
  • Prompt & response caching
  • Fallback strategy for cost/quality tradeoffs
03

Manage Context & Token Efficiency

Prompt engineering and context-window management that reduces token consumption per request without degrading output quality.

  • Prompt & context optimization
  • RAG retrieval context tuning
  • Conversation history management
04

Govern LLM Spend with Unit Economics

Cost-per-request and cost-per-user unit economics tracked and governed so LLM spend scales predictably with usage.

  • Cost-per-request / cost-per-user tracking
  • Budgets & anomaly alerts
  • Feature-level chargeback
20-40%
Typical LLM inference cost reduction
400+
Cloud specialists on staff
7,000+
Cloud installations managed globally
200+
Cloud & data implementations
Part of a Broader FinOps Practice

LLM spend is one piece of the puzzle — explore our full FinOps services

Pair LLM cost optimization with cloud cost optimization, management and governance across AWS, Azure and GCP.

Explore FinOps Services
FAQ

LLM cost optimization: frequently asked questions

LLM cost optimization is the practice of reducing the cost of running large language model workloads — through model routing, prompt/response caching, token and context efficiency, and inference cost management — while keeping output quality where it needs to be.

Model routing sends each request to the cheapest model capable of handling it well — a simple classification task doesn't need your most expensive frontier model — instead of routing every request to a single, general-purpose (and usually most expensive) model by default.

Prompt and response caching avoids paying for the same or highly similar LLM call twice — common for repeated queries, shared system prompts, or retrieval results that don't change often — and can meaningfully cut token spend at scale.

We tune prompt design and context-window usage — trimming unnecessary context, summarizing long histories, and right-sizing retrieved context in RAG pipelines — since token count drives cost directly on most LLM pricing models.

LLM cost optimization is the token- and inference-level layer of AI FinOps, working alongside GenAI FinOps (platform and model-selection economics), AI Cost Optimization (GPU/infrastructure rightsizing) and AI Cost Management (visibility and governance).

Content last reviewed: September 2026

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