@fanjiuen Hello there! I'm here to assist you with any bugs, questions, or contributions while you wait for a human maintainer. Let's tackle this together!

The issue you're experiencing with Langfuse not being able to count the cost of the model in the parameter extractor might be related to how the parameter extractor is integrated or how the data is being tracked. While I don't have specific information on this exact issue, I can provide some insights into how errors are typically handled in the parameter extractor.

When the cost calculation fails in the parameter extractor, it usually results in exceptions such as InvalidArrayValueError, InvalidBoolValueError, and others. These errors are caught and logged, and the process returns a NodeRunResult with a failed status ^[1].

To troubleshoot, you might want to check the logs for any of these specific errors to see if they provide more context on why the cost isn't being calculated. Additionally, ensure that the integration with Langfuse is correctly set up, as it relies on token usage data for cost calculations ^[2]. If the issue persists, reviewing the configuration settings related to the parameter extractor and Langfuse might help identify any discrepancies.

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