---
library_name: onnx
tags:
  - translation
  - marian
  - encoder-decoder
  - en
  - fr
  - onnx
  - inference4j
license: apache-2.0
pipeline_tag: translation
---

# MarianMT English→French — ONNX

ONNX export of [Helsinki-NLP/opus-mt-en-fr](https://huggingface.co/Helsinki-NLP/opus-mt-en-fr) with encoder-decoder architecture and KV cache support.

Trained on the OPUS parallel corpus for English to French translation.

Converted for use with [inference4j](https://github.com/inference4j/inference4j), an inference-only AI library for Java.

## Original Source

- **Repository:** [Helsinki-NLP/opus-mt-en-fr](https://huggingface.co/Helsinki-NLP/opus-mt-en-fr)
- **License:** Apache 2.0

## Usage with inference4j

```java
try (var translator = MarianTranslator.builder()
        .modelId("inference4j/opus-mt-en-fr").build()) {
    System.out.println(translator.translate("The weather is beautiful today."));
}
```

## Model Details

| Property | Value |
|----------|-------|
| Architecture | MarianMT encoder-decoder |
| Language pair | English → French |
| Training data | OPUS |
| Tokenizer | SentencePiece |
| Original framework | PyTorch (transformers) |
| Export method | Hugging Face Optimum (encoder-decoder with KV cache) |

## License

This model is licensed under the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Original model by [Helsinki-NLP](https://huggingface.co/Helsinki-NLP).