Auralith Data Pipeline
Production-grade multimodal data processing pipeline for training RT-DLM and large-scale AI systems.
Overview
Auralith Data Pipeline ingests raw text, images, audio, video, and code, applies production-quality curation (perplexity filtering, LLM-as-Judge scoring, FAISS deduplication, PII scrubbing, license detection), tokenizes everything through BPE + Vector Quantization, and outputs SafeTensors shards ready for distributed model training.
Pipeline Stages
| Stage | What happens |
|---|---|
| Ingestion | Text (HuggingFace, Common Crawl, local), images (.npy/JPEG/PNG), audio (.wav/.npy), video (.mp4), code (TheStack) |
| Quality Curation | GPT-2 perplexity filter, LLM-as-Judge scoring, FAISS embedding dedup, license detection |
| Tokenization | BPE for text, patch + VQ for images, mel + VQ for audio, frame + VQ for video |
| Sharding | SafeTensors v2 schema with input_ids, attention_mask, modality_mask, targets |
| Observability | MLflow / W&B tracking, per-sample lineage, auto data cards |
| Orchestration | Argo Workflows, Helm/K8s, Ray, distributed coordinator + workers |
Installation
# Core text pipeline
pip install auralith-data-pipeline
# With all extras (multimodal, cloud, distributed, dev tools)
pip install "auralith-data-pipeline[all]"
# Pick only what you need
pip install "auralith-data-pipeline[quality]" # + perplexity filter + FAISS dedup
pip install "auralith-data-pipeline[distributed]" # + Ray
pip install "auralith-data-pipeline[cloud,pdf]" # + S3/GCS/Azure + PDF extraction
pip install "auralith-data-pipeline[multimodal]" # + video/image/audio (PyTorch)
pip install "auralith-data-pipeline[tracking]" # + MLflow + W&B
Quick Start
CLI
# List available datasets
auralith-pipeline list-datasets
# Process Wikipedia dataset
auralith-pipeline collect \
--dataset wikipedia \
--output ./data/shards \
--max-samples 100000 \
--preset production
End-to-End Workflow
# 1. Train tokenizers (BPE + VQ codebooks)
auralith-pipeline train-tokenizer all \
--corpus data/corpus/ \
--images data/images/ \
--audio data/audio/ \
--videos data/videos/ \
--output tokenizers/ \
--vocab-size 32000 \
--codebook-size 1024
# 2. Process raw data into SafeTensors shards
auralith-pipeline process \
--input data/raw/ \
--output shards/ \
--tokenizers tokenizers/ \
--max-seq-len 4096 \
--shard-size 10000
# 3. Upload to cloud storage or HuggingFace Hub
auralith-pipeline upload --source shards/ --dest s3://my-bucket/training-data/
Python API
from auralith_pipeline import Pipeline, PipelineConfig
from auralith_pipeline.sources import create_source
config = PipelineConfig.from_preset("production")
pipeline = Pipeline(config)
source = create_source("wikipedia", streaming=True, max_samples=1_000_000)
pipeline.add_source(source)
stats = pipeline.run()
print(stats.summary())
Key Features
Data Processing
- Multi-source ingestion (HuggingFace, Common Crawl, local files, video)
- Weighted round-robin interleaving across multiple sources
- MinHash + FAISS embedding deduplication
- Quality filtering (length, language, perplexity, LLM-as-Judge)
- PII removal (multi-jurisdiction, 15+ countries)
- License compliance scanning for code data
- Document extraction (PDF, DOCX, HTML, Markdown)
- SafeTensors sharding with Zstd compression and SHA-256 checksums
- Streaming checkpointing with seeded reproducibility
Tokenization
- Custom BPE tokenizer with 16 special tokens and byte-level fallback
- Vector quantization for images, audio, and video
- Multimodal token fusion with
encode_with_mask() - Configurable vocab size (32k-128k)
Distributed Processing
- Embedded mode — in-process coordinator + workers (no Redis needed)
- External mode — multi-machine with Redis state store
- Worker failure detection + automatic task requeue
- Linear scaling up to 64+ workers
Observability & Compliance
- MLflow / Weights & Biases experiment tracking
- Per-sample lineage (source to shard provenance)
- Auto-generated data cards (HuggingFace-compatible)
- Full audit logging (JSONL) for accept/reject decisions
- Credential and secret sanitization
SafeTensors Schema (v2)
Every output shard is directly compatible with RT-DLM training.
| Tensor | Dtype | Shape | Description |
|---|---|---|---|
input_ids |
int32 | (batch, seq_len) | All tokens (text + image + audio + video + code) |
attention_mask |
uint8 | (batch, seq_len) | 1 = real token, 0 = padding |
modality_mask |
uint8 | (batch, seq_len) | 0=text, 1=image, 2=audio, 3=video, 4=code |
targets |
int32 | (batch, seq_len) | Right-shifted input_ids for causal LM |
Special Tokens
| ID | Token | Purpose |
|---|---|---|
| 0 | <PAD> |
Padding |
| 1 | <UNK> |
Unknown |
| 2 | <BOS> |
Beginning of sequence |
| 3 | <EOS> |
End of sequence |
| 4-5 | <IMG> / <IMG_END> |
Image region |
| 6-7 | <AUDIO> / <AUDIO_END> |
Audio region |
| 8-9 | <VIDEO> / <VIDEO_END> |
Video region |
| 10 | <FUSE> |
Cross-modal fusion |
| 11 | <SEP> |
Separator |
| 12 | <MASK> |
Masked LM |
| 13-14 | <CODE> / <CODE_END> |
Code block |
| 15 | <THINK> |
Chain-of-thought |
Available Datasets
| Dataset | Size | Description |
|---|---|---|
| wikipedia | 20 GB | English Wikipedia |
| c4 | 750 GB | Cleaned Common Crawl |
| redpajama | 1.2 TB | LLaMA training data |
| openwebtext | 40 GB | Reddit links |
| bookcorpus | 5 GB | 11k books |
| the_stack | 3 TB | Source code (deduplicated) |
Performance
| Operation | Speed |
|---|---|
| Text preprocessing | 10k samples/sec |
| MinHash deduplication | 5k samples/sec |
| FAISS dedup | 3k samples/sec |
| BPE encoding | < 1 ms/sample |
| SafeTensors writing | 50 MB/s |
| Image tokenization | 50 ms/image |
| Video tokenization | 200 ms/video |
Configuration
# configs/production.yaml
pipeline:
name: production-pipeline
output_dir: ./data/shards
deduplicate: true
quality_filter: true
remove_pii: true
seed: 42
checkpoint_every: 10000
advanced_quality:
enabled: true
perplexity_filter: true
max_perplexity: 1500.0
Documentation
For the full documentation, architecture diagrams, distributed processing guide, and contributor guide, visit the GitHub repository.
License
Apache License 2.0 — see LICENSE.
Built by AuralithAI for RT-DLM.
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