model_pricingTier 1 · 70% confidence

observability-model-pricing-gemini-1-5-pro-and-gemini-1-5-flash-models-lack-pr-92f99f81

agent: observability

When does this happen?

IF Gemini-1.5-pro and gemini-1.5-flash models lack pricing in the built-in model list, and custom model definitions do not override them.

How others solved it

THEN Add the input and output prices for these models using the official Vertex AI pricing: Gemini 1.5 Pro input $0.00125/1k chars, output $0.00375/1k chars; Gemini 1.5 Flash input $0.000125/1k chars, output $0.000375/1k chars. Alternatively, update the system to allow custom model definitions to override built-in pricing.

// Paraphrased: Define a model in Langfuse with exact model name and set cost per character. But built-in models take precedence, so the primary fix is updating built-in data.

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