langfuse-model-upsert

name	langfuse-model-upsert
description	Create or update Langfuse model pricing. Use when setting up new models, updating pricing, or configuring model costs.
license	MIT
compatibility	Node.js 18+ (native fetch required)
metadata	{"author":"neuradex","category":"observability"}
allowed-tools	["Bash(npx tsx *scripts/langfuse-model-upsert.ts*)"]

Langfuse Model Upsert

Create or update model pricing information.

Setup

Set the following environment variables before use:

Variable	Required	Description
LANGFUSE_PUBLIC_KEY	Yes	Langfuse public key
LANGFUSE_SECRET_KEY	Yes	Langfuse secret key
LANGFUSE_HOST or LANGFUSE_BASE_URL	No	Langfuse host URL (default: https://us.cloud.langfuse.com)

When to Use

• Setting model pricing
• Adding a new model
• Updating pricing

Commands

1. Set Model Pricing

npx tsx scripts/langfuse-model-upsert.ts "<model-name>" --input <input-price> --output <output-price>

2. With Custom Match Pattern

npx tsx scripts/langfuse-model-upsert.ts "<model-name>" --input <input-price> --output <output-price> --pattern "<regex>"

Examples

# Set pricing for Groq qwen3-32b
npx tsx scripts/langfuse-model-upsert.ts "qwen/qwen3-32b" --input 0.29 --output 0.59

# Set pricing for Fireworks deepseek-v3 (with pattern)
npx tsx scripts/langfuse-model-upsert.ts "deepseek-v3" --input 0.20 --output 0.60 --pattern ".*deepseek-v3.*"

Output Example

Updating existing model: qwen/qwen3-32b
  Current: input=$0.20, output=$0.40
  Deleted old model definition

Model updated successfully!
  Model Name: qwen/qwen3-32b
  Input Price: $0.29/1M tokens
  Output Price: $0.59/1M tokens

Parameters

Parameter	Description
<model-name>	Model identifier (required)
--input	Cost per 1M input tokens (USD)
--output	Cost per 1M output tokens (USD)
--pattern	Regex pattern for model name matching (default: exact match)

Notes

• Prices are in USD per 1M tokens
• Existing models are deleted and re-created (update)
• If no pattern is specified, the model name is used as an exact match