MAP-Neo

Provides a complete, open-source training pipeline that includes data collection, preprocessing, tokenization, model training, and evaluation stages with intermediate checkpoints saved at regular intervals. The pipeline is designed for full transparency and reproducibility, allowing researchers to inspect every stage of model development from raw data through final weights. Implements standard transformer architecture training with distributed training support and comprehensive logging of hyperparameters and training metrics.

Implements a multi-stage data pipeline for collecting, cleaning, and preparing bilingual text corpora for model training. The pipeline handles language detection, deduplication, quality filtering, and alignment of parallel text across language pairs. Uses configurable preprocessing rules to normalize text, remove low-quality documents, and balance data distribution between languages to prevent training bias toward high-resource languages.

Evaluates bilingual models on language-specific benchmarks and multilingual tasks, measuring performance across both languages and analyzing language-specific strengths and weaknesses. The evaluation framework supports custom benchmarks and provides detailed analysis of cross-lingual transfer and language interference.

Implements a configurable tokenizer training system that learns vocabulary from bilingual corpora using byte-pair encoding (BPE) or similar subword tokenization algorithms. The system optimizes vocabulary size and merging strategies to balance compression efficiency across both languages, preventing vocabulary bias toward high-resource languages. Produces serialized tokenizer artifacts that can be versioned and reproduced, with detailed statistics on token distribution and compression ratios.

Implements distributed training of transformer-based language models using data parallelism and gradient accumulation across multiple GPUs or TPUs. The system includes automatic mixed precision (AMP) training for memory efficiency, gradient checkpointing to reduce memory footprint, and periodic checkpoint saving at configurable intervals. Supports resuming training from checkpoints with automatic learning rate scheduling and loss tracking across training steps.

Implements a suite of evaluation metrics and benchmarks for assessing language model performance across multiple dimensions including perplexity, downstream task performance (classification, QA, generation), and language-specific metrics. The system runs standardized benchmarks on intermediate checkpoints to track capability emergence, supports both automatic metrics (BLEU, ROUGE, F1) and human evaluation protocols, and generates detailed evaluation reports comparing performance across languages and tasks.

Implements a configuration-based system for defining, launching, and tracking training experiments using YAML or JSON configuration files that specify model architecture, data pipeline, training hyperparameters, and evaluation settings. The system automatically logs all configuration parameters, random seeds, and environment details to enable perfect reproducibility. Supports experiment versioning, parameter sweeps, and automated result aggregation across multiple runs.

Implements serialization of trained model weights in multiple formats (safetensors, PyTorch, HuggingFace format) with automatic versioning, metadata embedding, and integrity checking. The system tracks model provenance including training configuration, data sources, and training date, enabling users to verify model authenticity and understand its origin. Supports efficient weight loading with lazy initialization for large models.

Generates comprehensive documentation of the training process including detailed descriptions of data sources, preprocessing steps, model architecture, hyperparameters, and training procedures. The system produces reproducibility artifacts such as dependency specifications (requirements.txt, environment.yml), training scripts, and detailed README files that enable other researchers to understand and reproduce the training process. Includes links to intermediate checkpoints and evaluation results for full transparency.

Implements deterministic training through careful random seed management across PyTorch, NumPy, and Python's random module, with explicit documentation of non-deterministic operations. The system ensures that training runs with identical configurations produce identical results, enabling perfect reproducibility for research and debugging.

Implements inference and text generation with multiple decoding strategies (greedy, beam search, nucleus sampling, temperature scaling), supporting both batch and streaming inference modes. The system includes optimizations for inference efficiency (KV-cache, attention optimization) and supports quantization for reduced memory footprint.