---
pipeline_tag: translation
library_name: comet
language:
- multilingual
- af
- am
- ar
- as
- az
- be
- bg
- bn
- br
- bs
- ca
- cs
- cy
- da
- de
- el
- en
- eo
- es
- et
- eu
- fa
- fi
- fr
- fy
- ga
- gd
- gl
- gu
- ha
- he
- hi
- hr
- hu
- hy
- id
- is
- it
- ja
- jv
- ka
- kk
- km
- kn
- ko
- ku
- ky
- la
- lo
- lt
- lv
- mg
- mk
- ml
- mn
- mr
- ms
- my
- ne
- nl
- 'no'
- om
- or
- pa
- pl
- ps
- pt
- ro
- ru
- sa
- sd
- si
- sk
- sl
- so
- sq
- sr
- su
- sv
- sw
- ta
- te
- th
- tl
- tr
- ug
- uk
- ur
- uz
- vi
- xh
- yi
- zh
license: apache-2.0
base_model:
- FacebookAI/xlm-roberta-large
---

# COMET-instant-confidence

This model is based on [COMET-early-exit](https://github.com/zouharvi/COMET-early-exit), which is a fork but not compatible with original Unbabel's COMET.
To run the model, you need to first install this version of COMET either with:
```bash
pip install "git+https://github.com/zouharvi/COMET-early-exit#egg=comet-early-exit&subdirectory=comet_early_exit"
```
or in editable mode:
```bash
git clone https://github.com/zouharvi/COMET-early-exit.git
cd COMET-early-exit
pip3 install -e comet_early_exit
```

This model specifically behaves like standard quality estimation, but outputs two numbers: `scores` (as usual) and `confidences`, which is the estimated absolute error from the human score.
Thus, contrary to expectations, higher "confidence" correponds to less correct QE estimation.
```python
model = comet_early_exit.load_from_checkpoint(comet_early_exit.download_model("zouharvi/COMET-instant-confidence"))
data = [
    {
        "src": "Can I receive my food in 10 to 15 minutes?",
        "mt": "Moh bych obdržet jídlo v 10 do 15 minut?",
    },
    {
        "src": "Can I receive my food in 10 to 15 minutes?",
        "mt": "Mohl bych dostat jídlo během 10 či 15 minut?",
    }
]
model_output = model.predict(data, batch_size=8, gpus=1)
print("scores", model_output["scores"])
print("estimated errors", model_output["confidences"])

assert len(model_output["scores"]) == 2 and len(model_output["confidences"]) == 2
```
Outputs (formatted):
```
scores            72.71  88.56
estimated errors  15.63   9.74
```

This model is based on the work [Early-Exit and Instant Confidence Translation Quality Estimation](http://arxiv.org/abs/2502.14429) which can be cited as:
```
@misc{zouhar2025earlyexitinstantconfidencetranslation,
      title={Early-Exit and Instant Confidence Translation Quality Estimation}, 
      author={Vilém Zouhar and Maike Züfle and Beni Egressy and Julius Cheng and Jan Niehues},
      year={2025},
      eprint={2502.14429},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2502.14429}, 
}
```