Unknown model class "new", attempting to construct from base class.

[ksemba]

System Info

nodejs version: 21.7.2
I'm building a nodejs app, not a web app for the browser. I'm running my app using npx tsx app.ts.

Package.json:
{
"name": "ai-innovation",
"version": "0.1.0",
"private": true,
"type": "module",
"scripts": {
"dev": "next dev",
"build": "next build",
"start": "next start",
"lint": "next lint",
"test": "jest --config jest.config.mjs"
},
"dependencies": {
"@grpc/grpc-js": "^1.10.6",
"@opentelemetry/api": "^1.8.0",
"@opentelemetry/exporter-metrics-otlp-http": "^0.51.0",
"@opentelemetry/exporter-prometheus": "^0.51.0",
"@opentelemetry/exporter-trace-otlp-http": "^0.51.0",
"@opentelemetry/instrumentation-grpc": "^0.51.0",
"@opentelemetry/sdk-metrics": "^1.24.0",
"@opentelemetry/sdk-node": "^0.51.0",
"@opentelemetry/sdk-trace-node": "^1.24.0",
"@supabase/ssr": "^0.3.0",
"@supabase/supabase-js": "^2.42.5",
"@xenova/transformers": "^2.17.1",
"axios": "^1.6.8",
"base64-stream": "^1.0.0",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.1",
"dotenv": "^16.4.5",
"next": "14.2.2",
"openai": "^4.38.2",
"react": "^18",
"react-dom": "^18",
"reflect-metadata": "^0.2.2",
"winston": "^3.13.0",
"zlib": "^1.0.5"
},
"devDependencies": {
"@swc/core": "^1.3.58",
"@swc/helpers": "^0.5.1",
"@types/base64-stream": "^1.0.5",
"@types/jest": "^29.5.12",
"@types/node": "^20",
"@types/react": "^18",
"@types/react-dom": "^18",
"eslint": "^8",
"eslint-config-next": "14.2.2",
"jest": "^29.7.0",
"postcss": "^8",
"tailwindcss": "^3.4.1",
"ts-jest": "^29.1.2",
"ts-node": "^10.9.2",
"tsx": "^4.7.2",
"typescript": "^5"
},
"ts-node": {
"esm": true,
"swc": true
}
}

Environment/Platform

• Website/web-app
• Browser extension
• Server-side (e.g., Node.js, Deno, Bun)
• Desktop app (e.g., Electron)
• Other (e.g., VSCode extension)

Description

I copy-pasted the code from here: https://huggingface.co/Alibaba-NLP/gte-large-en-v1.5 for the JavaScript library and ran it locally. It always prints this output:
Unknown model class "new", attempting to construct from base class. Model type for 'new' not found, assuming encoder-only architecture. Please report this at https://github.com/xenova/transformers.js/issues/new/choose.

But it also generates the correct similarities so the code doesn't seem to be broken

Reproduction

1. Copy transformers.js example code from https://huggingface.co/Alibaba-NLP/gte-large-en-v1.5 into an app.ts file
2. Run this file using npx tsx app.ts

[xenova]

Hi there 👋 This is because (for some reason), the model authors decided to choose "new" for the model type in the config.json (see here). Luckily, because it's BERT-like (encoder-only), the model runs correctly since that's selected by the default in transformers.js.

Basically, you can ignore the warning, but thanks for letting us know! :)