ynklab/Tower-7B-d2d

TEXT GENERATIONPricing:Input $0.4 / Cached $0.08 / Output $0.8Concurrent Unit Cost:1Model Size:7BQuant:FP8Context Size:4kTool Calling:SupportedPublished:Sep 7, 2026License:cc-by-nc-sa-4.0Architecture:Transformer Open Weights Featherless Exclusive Cold

ynklab/Tower-7B-d2d is a 7 billion parameter, full-parameter fine-tuned version of Unbabel/TowerInstruct-Mistral-7B-v0.2, developed by ynklab. This model is specifically optimized for multilingual document-level machine translation, supporting English to and from German, Spanish, French, Italian, Korean, Dutch, Portuguese, Russian, and Chinese. Trained on the DocBlocks dataset, it excels at direct document-to-document translation with a maximum sequence length of 32,768 tokens.

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Overview

ynklab/Tower-7B-d2d is a 7 billion parameter language model developed by ynklab, specifically fine-tuned for multilingual document-level machine translation. It is based on the Unbabel/TowerInstruct-Mistral-7B-v0.2 architecture and was trained using full-parameter supervised fine-tuning on the sardinelab/DocBlocks dataset.

Key Capabilities

  • Document-to-Document Translation: Optimized for translating entire documents rather than isolated sentences.
  • Multilingual Support: Translates between English and nine other languages (German, Spanish, French, Italian, Korean, Dutch, Portuguese, Russian, Chinese) in both directions.
  • High Context Length: Supports a maximum sequence length of 32,768 tokens, allowing for comprehensive document processing.
  • ChatML Prompting: Utilizes a specific ChatML-style prompt format for translation tasks, as detailed in the Doc2FRC GitHub repository.

Training Details

The model was fine-tuned for 2 epochs with a learning rate of 7e-6, using bfloat16 precision and an AdamW optimizer. Its training focused on the DocBlocks dataset, which is designed for document-level parallel data.

Good For

  • Developers and researchers requiring robust document-level translation capabilities.
  • Applications needing accurate translation between English and the supported languages, especially for longer texts.
  • Integration into systems where the specific prompt format and high context length are beneficial for translation tasks.