Class: ClaudeUsage::CostCalculator

Inherits:
Object
  • Object
show all
Defined in:
lib/claude_usage/cost_calculator.rb

Constant Summary collapse

TIERED_THRESHOLD = 
200_000

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CostCalculator

Returns a new instance of CostCalculator.



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# File 'lib/claude_usage/cost_calculator.rb', line 7

def initialize
  @pricing_fetcher = LiteLLMPricingFetcher.new
end

Instance Method Details

#calculate_cost(entry) ⇒ Object 



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# File 'lib/claude_usage/cost_calculator.rb', line 11

def calculate_cost(entry)
  return entry[:pre_calculated_cost] if entry[:pre_calculated_cost]

  # Skip if no model information
  return 0 if entry[:model].nil? || entry[:model].empty?

  model_pricing = @pricing_fetcher.get_model_pricing(entry[:model])
  return 0 unless model_pricing

  calculate_tiered_cost(
    entry[:input_tokens],
    model_pricing[:input_cost_per_token],
    model_pricing[:input_cost_per_token_above_200k]
  ) +
    calculate_tiered_cost(
      entry[:output_tokens],
      model_pricing[:output_cost_per_token],
      model_pricing[:output_cost_per_token_above_200k]
    ) +
    calculate_tiered_cost(
      entry[:cache_creation_tokens],
      model_pricing[:cache_creation_input_token_cost],
      model_pricing[:cache_creation_cost_above_200k]
    ) +
    calculate_tiered_cost(
      entry[:cache_read_tokens],
      model_pricing[:cache_read_input_token_cost],
      model_pricing[:cache_read_cost_above_200k]
    )
end