Model Merging Python Packages

mergekit

Tools for merging pretrained large language models.

crdt-merge

Conflict-free merge for DataFrames, JSON, ML models & distributed agents — powered by CRDTs. The first merge library where every operation is mathematically guaranteed to converge.

sd-mecha

Executable State Dict Recipes

fusion-bench

FusionBench: A Comprehensive Benchmark/Toolkit of Deep Model Fusion

mergenetic

Flexible library for merging large language models (LLMs) via evolutionary optimization (ACL 2025 Demo).

terge

An easy-to-use Python library for merging PyTorch models.

zhijian

ZhiJian: A Unifying and Rapidly Deployable Toolbox for Pre-trained Model Reuse