Class: Ace::Support::Models::Molecules::CostCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/ace/support/models/molecules/cost_calculator.rb

Overview

Calculates query costs based on token usage

Instance Method Summary collapse

Constructor Details

#initialize(validator: nil) ⇒ CostCalculator

Initialize calculator

Parameters:

  • validator (ModelValidator, nil) (defaults to: nil) —

    Validator instance



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# File 'lib/ace/support/models/molecules/cost_calculator.rb', line 11

def initialize(validator: nil)
  @validator = validator || ModelValidator.new
end

Instance Method Details

#calculate(model_id, input_tokens:, output_tokens:, reasoning_tokens: 0) ⇒ Hash

Calculate cost for a query

Parameters:

  • model_id (String) —

    Model ID

  • input_tokens (Integer) —

    Input token count

  • output_tokens (Integer) —

    Output token count

  • reasoning_tokens (Integer) (defaults to: 0) —

    Reasoning token count

Returns:

  • (Hash) —

    Cost breakdown



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# File 'lib/ace/support/models/molecules/cost_calculator.rb', line 21

def calculate(model_id, input_tokens:, output_tokens:, reasoning_tokens: 0)
  model = @validator.validate(model_id)
  pricing = model.pricing

  unless pricing.available?
    return {
      model_id: model.full_id,
      model_name: model.name,
      error: "No pricing data available for this model",
      available: false
    }
  end

  input_cost = calculate_component(input_tokens, pricing.input)
  output_cost = calculate_component(output_tokens, pricing.output)
  reasoning_cost = calculate_component(reasoning_tokens, pricing.reasoning)

  total = input_cost + output_cost + reasoning_cost

  {
    model_id: model.full_id,
    model_name: model.name,
    available: true,
    tokens: {
      input: input_tokens,
      output: output_tokens,
      reasoning: reasoning_tokens,
      total: input_tokens + output_tokens + reasoning_tokens
    },
    rates: {
      input: pricing.input,
      output: pricing.output,
      reasoning: pricing.reasoning
    },
    costs: {
      input: input_cost,
      output: output_cost,
      reasoning: reasoning_cost,
      total: total
    },
    formatted: {
      input: format_cost(input_cost),
      output: format_cost(output_cost),
      reasoning: format_cost(reasoning_cost),
      total: format_cost(total)
    }
  }
end

#format(result) ⇒ String

Format a cost breakdown as human-readable string

Parameters:

  • result (Hash) —

    Result from calculate

Returns:

  • (String) —

    Formatted string



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# File 'lib/ace/support/models/molecules/cost_calculator.rb', line 73

def format(result)
  return result[:error] unless result[:available]

  lines = []
  lines << "Model: #{result[:model_name]} (#{result[:model_id]})"
  lines << ""

  tokens = result[:tokens]
  result[:costs]
  rates = result[:rates]

  if tokens[:input] > 0
    lines << "Input:     #{format_tokens(tokens[:input])} tokens × $#{rates[:input]}/M = #{result[:formatted][:input]}"
  end

  if tokens[:output] > 0
    lines << "Output:    #{format_tokens(tokens[:output])} tokens × $#{rates[:output]}/M = #{result[:formatted][:output]}"
  end

  if tokens[:reasoning] > 0 && rates[:reasoning]
    lines << "Reasoning: #{format_tokens(tokens[:reasoning])} tokens × $#{rates[:reasoning]}/M = #{result[:formatted][:reasoning]}"
  end

  lines << ""
  lines << "Total: #{result[:formatted][:total]}"

  lines.join("\n")
end