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Unsloth

Also strong

Optimized fine-tuning library claiming 2× faster LoRA/QLoRA with less VRAM via custom kernels and Hugging Face compatibility.

llmfine-tuningloratrainingoptimization

AI & Machine Learning

ONNX Runtime

Top pick

Cross-platform inference accelerator for ONNX models: CPU, GPU, and mobile execution providers with graph optimizations.

inferenceonnxdeploymentoptimization

AI & Machine Learning

OpenVINO

Also strong

Intel toolkit to optimize and deploy deep learning on Intel CPUs, GPUs, and NPUs with model conversion and runtime APIs.

inferenceinteledgeoptimization

AI & Machine Learning

Optuna

Also strong

Automatic hyperparameter optimization framework with pruning, distributed search, and lightweight integration hooks.

hyperparameter-tuningautomlpythonoptimization

AI & Machine Learning

faster-whisper

Also strong

CTranslate2 reimplementation of Whisper for faster CPU/GPU inference with lower memory use than reference PyTorch.

speechasrinferenceoptimization