Smart AI Usage for Businesses: A Cost-Focused Guide

Smart AI Usage for Businesses: A Cost-Focused Guide
Photo by Nahrizul Kadri / Unsplash

A good friend of mine once said to me "like it or not, AI is here to stay." He couldn't have been more correct. It's almost impossible to have a business conversation lately with the topic coming up. Massive enterprises are downsizing to reduce costs and expedite results. Developers are using it for coding, marketing teams are generating content, and leadership is exploring agentic workflows. The benefits of AI are real, and so are the costs.

Perhaps your company is considering AI. If so, do the research and make informed decisions. Or maybe your company is already utilizing AI. If so, you're probably aware of the costs already, but it never hurts to revisit finances, especially with investments of this magnitude. For many organizations, AI costs are spiraling out of control; not because they're using AI wrong, but because they don't understand where the real costs hide.

This guide cuts through the hype to show you exactly where your AI budget goes and how you might optimize it. Whether you're running inference workloads in the cloud or managing employee subscriptions, understanding these cost dynamics is essential for sustainable AI adoption.

Understanding AI Cost Models

AI compute costs come in three primary models. Each serves a different purpose, but ultimately rely on the same final resource.

Subscription Model

Most people familiar with AI are familiar with subscription models. These are end-user tools that people use to help write documents, vibe code, or get recommendations for wedding gifts and other mundane tasks they used to use search engines for.

Products like ChatGPT Plus, Claude Pro, and Cursor offer fixed monthly fees for individuals or teams with varying usage limits. These are great for predictable employee usage but can become expensive at scale.

Token Model

Behind the scenes, AI tools and applications rely on API services, which are also used for building services like chatbots, and agentic AI. API services are typically used by developers building applications of their own, or for heavy code assistance.

AI services like OpenAI, Anthropic, and Google offer API access to their models, charging per token (e.g. words, or portions thereof). This includes both inputs that are sent (prompts) and outputs that are received (responses) measured in tokens, the sum of which you'll pay for. Prices vary dramatically by model: smaller and older models typically cost less than newer and larger ones.

As a bit of an aside, I love thinking about what that can equate to in real terms. Like those people that brag about one-shotting a Mac interface in their browsers. Sure, one-prompt is impressive but how many tokens did that burn? Reddit is filled with stories of unexpectedly high token use and costs for seemingly trivial requests.

Compute Model

The conventional model, from before the rise of API tools and services, was to use computers with the same high-powered GPUs that are used to provide the tools and services mentioned above. Businesses with long-running and persistent needs like inference at scale, training, or fine-tuning models require this.

Compute access for this is typically provided directly with a computer equipped with high-powered GPUs (requiring setup and configuration) or through high level services, billed by the hour. Even a single training run on GPU machines can cost hundreds or thousands of dollars. Most businesses won't need this initially, but it's critical for specialized applications. It can also be a challenge as you compete with analytic and other consumers of GPU resources.

The math is interesting when you think of self-hosting AI. At what point does it make more sense to run your own inference endpoint on dedicated GPU compute that the whole org shares? There's a breakeven somewhere, and it depends on utilization, model size, and what you actually need the model to do. Most companies never even ask the question because the subscription model is easy to swallow per-seat.

Cloud AI: Where the Big Money Lives

When AI moves from employee tools to production systems, costs change.

Model Inference at Scale

Running AI inference for customer-facing applications is where costs compound quickly. Consider a chatbot handling 10,000 customer queries daily. At an average of 1,000 tokens per interaction (both input and output), that's 10 million tokens daily or 300 million monthly. Scale that to enterprise levels, like 100,000 daily interactions, and you could easily find yourself in 6-figures annually.

The real danger is in the multiplication effect: every new user is a multiplier, every new feature has the same potential, and with the two feeding off each other the result will be more exponential than linear.

Agentic Workflows: The Cost Multiplier

This is probably the most dangerous aspect of AI with respect to costs for companies offering products, services, or looking to replace their workforce. Agentic systems, where AI makes decisions, uses tools, and chains multiple actions, can create compound costs and spiral out of control quickly.

For example, a simple query might trigger 5-10 separate AI calls. Each call could potentially include:

  • The full conversation context (often thousands of tokens)
  • Tool descriptions and instructions
  • Previous tool results
  • The agent's reasoning process

A single user question might consume tens of thousands of tokens across multiple agentic calls, compared to hundreds for a simple chatbot response. At scale, agentic workflows can become your largest AI expense category.

Training and Fine-Tuning

Training custom models is expensive but often overestimated as a cost driver. Most businesses won't train from scratch but may fine-tune existing models for specific domains. It's a one-time or occasional expense, not ongoing like inference.

The bigger consideration: fine-tuned models often require more expensive self-hosting. You're trading training costs for potentially higher inference costs and response time.

Employee AI Usage: The Hidden Costs

While cloud AI dominates headlines, employee AI tool costs add up quickly and are often overlooked in budgeting.

Individual vs. Team Subscriptions

The math is deceptively simple but impactful. Starting near free for basic features, moving into subscriptions at tens or hundreds per month, each with different usage limits, these costs can add up quickly. A couple hundred people on plans could easily match the all-in costs of another employee.

The danger here, like so much in FinOps, is underutilization. Companies may buy licenses for all employees but find only a small percentage are active users; effectively paying for seats that generate no value. If you're considering this at your company, start with power users, measure usage, then expand.

Usage Patterns That Drive Costs

Not all employee AI usage costs the same. A developer using Copilot generates constant but low-cost code completions. A marketer generating multiple iterations of long-form content might hit rate limits quickly. An analyst processing spreadsheets with AI might trigger expensive in-house data operations, potentially impacting other analyses.

Monitor which teams consume the most resources. Understanding these power users helps you allocate budget and potentially negotiate custom pricing.

Smart Strategies for Managing AI Costs

Let's consider how to control costs without sacrificing AI's value.

Model Selection:

Not every task needs the latest frontier model; general purpose, high parameter LLMs are expensive. Smaller models cost less and handle most tasks well enough:

  • Simple classification or extraction: Use smaller models.
  • Complex reasoning or coding: Use frontier models.
  • Structured data processing: Consider specialized models.

Implement a tiered approach: route simple queries to cheaper models, escalate complex ones. This alone can significantly reduce inference costs.

Caching and Context Management

Many AI providers now offer prompt caching; storing repeated context to reduce input token costs. If your application sends the same 10k-token system prompt with every request, caching reduces input costs so you're only charged for deltas.

For agentic workflows, aggressive context management is critical. Don't send the entire conversation history with every agent call. Summarize previous interactions, remove irrelevant tool results, and maintain only essential context.

Batch Processing

Many AI providers offer batch processing at lower costs in exchange for slower turnaround, much like low priority queues in traditional HPC. This applies to:

  • Document analysis and extraction
  • Data classification
  • Content generation pipelines
  • Model evaluation and testing

While not suitable for interactive uses, it's a nice option for backend workflows.

Monitoring and Optimization

You can't optimize what you don't measure.

  • Track token usage per endpoint/feature
  • Monitor average tokens per request
  • Identify outlier requests (unusually high token consumption)
  • Set up alerts for cost spikes

Consider grains more fine than "per service", since knowing a specific feature has gone rogue could prove valuable. Quick wins come from identifying and fixing these outliers.

Distillation: The Long Play

Once you've validated a use case with expensive frontier models, consider model distillation: training a smaller, cheaper model to replicate the larger model's performance on your specific task. This requires upfront investment but can reduce both inference costs and response times.

Best for: stable, high-volume use cases where quality requirements are well-defined. Not suitable for: rapidly evolving features or low-volume applications.

The Bottom Line

Smart AI usage isn't about spending less, it's about spending strategically. The companies winning with AI understand where costs concentrate and optimize accordingly:

  • Agentic workflows are your biggest cost risk. Optimize agent calls aggressively.
  • Model selection matters. Balance cost and performance.
  • Employee subscriptions need management. Monitor utilization and adjust.
  • Caching and batch processing are low-hanging fruit. Easy savings.

It can be argued that the AI hype is slowing down and that there's a bubble bound to burst, but that doesn't mean what we have today won't get better and cheaper and that your business shouldn't use it. We hear prices will drop but at the same pace new models are introduced. Just be sure to make conscious decisions about how you use it and what your expectations are. Consider the 80/20 rule... AI may be able to do 80% of the work in 20% of the time, but the inverse is true as well; experienced people are going to spend 80% of the time checking and correcting 20% of that work.



I use AI every day. I have multiple subscriptions to multiple services. Each subscription was a conscious decision based on what I need, how much I need it, and what value it brings to my productivity.

If you're interested in optimizing cloud spend, migrating workloads, or modernizing systems, my friends and I can help. Learn more at thesteveco.us.

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