Customer-level AI profitability monitoring

Stop losing money on heavy AI users.

See the AI cost and gross margin of every customer, then trace risky accounts to the features and models driving their usage.

No credit card First 10k runs free Setup in minutes
Fig. 01Customer economics, before fees and overhead
Acme Ltd / current monthAt risk
CustomerAcme LtdGrowth plan · 1,284 AI runs
€11 gross profit
Revenue€49Monthly subscription
AI cost€38+31% this month
AI gross margin22.4%€11 gross profit
Works across the stack
OpenAIAnthropicGeminiCursorMCPSlackNotionCustom SDK
01 / The margin leak

Revenue can look healthy while one heavy user quietly wipes out the profit.

Provider bills show total spend. Billing tools show revenue. Refario connects the two at customer level so risky accounts become visible while there is still time to act.

01—05

A customer pays €49 a month and generates €38 in AI cost.

That leaves €11 before payment fees, infrastructure, and support. Refario identifies the account and the usage driving it before a growing customer becomes an unprofitable one.

Illustrative customer example
Acme Ltd / current monthMargin status
01Subscription revenueGrowth plan · €49
02Usage acceleratesSupport agent · +26%
03AI cost reaches€31 · 36.7% margin
04AI cost reaches€38 AI cost
05Status: at risk€11 profit · 22.4% margin
PlanGrowth
Revenue€49
AI cost€38
Margin22.4%
02 / Profitability view

Every customer tied to its real AI economics.

Move beyond aggregate token spend. See where cost comes from, compare it with revenue, and focus on the usage patterns that change gross margin.

01

Customer cost

Attribute model and tool spend to the account, workspace, or tenant that created it.

02

Gross margin

Combine attributed AI cost with customer revenue to see profit and margin clearly.

03

Heavy users

Find customers and features whose usage is quietly eroding your unit economics.

04

Margin status

Separate healthy, at-risk, and unprofitable accounts using deterministic margin calculations.

03 / Built for AI SaaS

A practical margin system for founders and small product teams.

Get enough technical context to understand the cause and enough commercial context to make the pricing, product, or customer decision.

Founders
  • Know which customers make money
  • Catch heavy-user risk early
  • Price plans with real usage data
Technical founders
  • Attribute cost without spreadsheets
  • Trace margin changes to features
  • Investigate at-risk accounts
Small AI SaaS teams
  • Review one shared margin picture
  • Focus fixes on economic impact
  • Turn usage into pricing decisions
04 / Setup

Connect usage, add revenue, and protect margin.

Start with one project. Send customer attribution with AI usage, enter monthly recurring revenue, then review which accounts are healthy, at risk, or unprofitable.

01

Connect usage

Send provider or SDK usage with the customer context your application already knows.

02

Add revenue

Enter monthly recurring revenue, currency, and plan details for each customer.

03

Protect margin

Review profitability status and act on risky usage before renewal.

05 / Pricing

Start with real usage, not another spreadsheet.

The free plan includes enough capacity to identify your first customer-level cost and margin signals. Upgrade when the analysis becomes part of your operating rhythm.

01
Free

Find your first customer-level cost and margin signals.

€0/month
  • 10k runs / month
  • 1 project
  • 1 user
  • 7-day retention
  • Customer cost attribution and margin dashboards
Start free
02
Starter

For a small AI SaaS team protecting live margins.

€19/month
  • 100k runs / month
  • 3 projects
  • 2 users
  • 30-day retention
  • Cost anomalies, budget controls, and margin status
Choose Starter
04
Enterprise

For scale, compliance, and custom rollout needs.

Custom
  • Higher negotiated limits
  • SSO, audit logs, and SLA
  • Dedicated onboarding
  • Custom deployment options
Talk to us
06 / Compare

Choose the business question, not the longest checklist.

Refario is the stronger fit when you need to connect customer revenue with attributed AI cost and act on gross margin—not only inspect model traffic.

Langfuse

Langfuse alternative

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You need AI cost, revenue, gross profit, margin, and plan context for each customer.
You want to find heavy users before their usage makes an account unprofitable.
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LangSmith

LangSmith alternative

For founders who need customer profitability beyond app-development telemetry.

You need a shared customer-margin view once real traffic is live.
You care about each customer’s cost and subscription plan as much as developer telemetry.
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Helicone

Helicone alternative

For teams that need customer economics, not only request or gateway visibility.

You need to combine customer revenue with attributed provider costs.
You need to connect a cost spike back to the customer and feature that created it.
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Arize Phoenix

Arize Phoenix alternative

For AI SaaS teams that want a focused customer-profitability workflow.

You want a narrower product story around customer economics and margin control.
Your team needs visibility into heavy users, their plan context, and current margin status.
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Start with one project

Know which customers are profitable.

No credit card. Attribute real AI usage and find the accounts putting your margin at risk.