LLM Engineer Toolkit: A Curated Collection of 120+ LLM Libraries
LLM Engineer Toolkit: A Curated Collection of 120+ LLM LibrariesIntroduction
What is LLM Engineer Toolkit?
LLM Engineer Toolkit is a carefully curated library of LLM tools that categorizes more than 120 LLM-related libraries in detail by function and use, covering the tools needed for the entire LLM development workflow—from training and fine-tuning, application development, inference serving, to safety and evaluation.

LLM Engineer Toolkit Tool Categories
1. LLM Training and Fine-Tuning
unsloth: Quickly fine-tunes LLMs and reduces memory usage.
PEFT: A parameter-efficient fine-tuning library.
TRL: Trains Transformer language models via reinforcement learning.
DeepSpeed: A distributed training and inference optimization library.
2. LLM Application Development
LangChain: Develops applications based on LLMs.
Llama Index: Provides a data framework for LLM applications.
Haystack: An end-to-end LLM framework that supports integration with Transformer models and vector search.
3. LLM Inference
vLLM: A high-throughput, memory-efficient inference engine.
LightLLM: A lightweight, scalable inference framework.
TensorRT-LLM: An Nvidia framework for optimizing LLM inference.
4. LLM Serving
Langcorn: Automatically deploys LangChain applications as FastAPI services.
LitServe: A fast serving engine that supports batching, streaming, and automatic GPU scaling.

5. LLM Data Extraction
Crawl4AI: An open-source, LLM-friendly web crawler.
Docling: A document parsing tool.
PyMuPDF4LLM: A tool for extracting content from PDFs.
6. LLM Data Generation
DataDreamer: A synthetic data generation library.
fabricator: A flexible synthetic data generation framework.
7. LLM Safety and Monitoring
LLM Guard: A security tool for LLM interactions.
Weights & Biases: Tracks LLM performance.
Helicone: An open-source LLM observability platform.
8. LLM Evaluation
Ragas: An evaluation tool for LLM applications.
LangTest: Provides a variety of test types to evaluate the accuracy, bias, and robustness of LLMs.
9. LLM Embedding Models
Sentence-Transformers: State-of-the-art text embedding models.
Text Embedding Inference: A high-performance embedding model inference tool.
10. Others
LLM Transparency Tool: Analyzes the internal mechanisms of Transformer models.
mergekit: A tool for merging pre-trained LLMs.
llm-engineer-toolkit libraryGitHub Repository:https://github.com/KalyanKS-NLP/llm-engineer-toolkit
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