---
title: Sentiment Classification API
emoji: 🚀
colorFrom: blue
colorTo: green
sdk: docker
app_port: 7860
pinned: false
---

# Route C — BERTweet-large Sentiment API (retrained)

Three-class sentiment classifier (`-1` negative, `0` neutral, `1` positive)
served via Flask + gunicorn on Hugging Face Spaces.

- Model: fine-tuned `vinai/bertweet-large` (retrained), up-cast to fp32 at CPU
  load time when stored as fp16.
- Wrapper classes: `sentiment_deploy.py` (`BertweetVectorizer`,
  `BertweetClassifier`).

POST a batch to `/`:

```
curl -d '{"items":[{"id":"test","text":"I love this!"}]}' \
  -H "Content-Type: application/json" -X POST <space-url> | jq
```