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Zetta can track inference usage for agents. This is useful for agents that pay for model calls or inference providers.

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What the ledger tracks

  • provider
  • model
  • request type
  • input tokens
  • output tokens
  • total tokens
  • latency
  • cost
  • cost source

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Cost source labels

LabelMeaning
actualProvider gave real billing data
estimatedZetta estimated cost from model and token usage
missingCost data is unavailable

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Rule

Never show missing cost as real spend. If cost data is missing, say it clearly.