openfree/Darwin-Qwen3-4B

Warm
Public
4B
BF16
40960
License: apache-2.0
Hugging Face
Overview

Overview

Darwin-Qwen3-4B is a 4 billion parameter model developed by openfree, leveraging a unique evolutionary algorithm named 'Darwin A2AP' v3.2. This model represents a new approach to AI model fusion, moving beyond traditional merging techniques restricted to models of the same family. It proposes a method to "collide and fuse the core representational structures (DNA)" of fundamentally different AI architectures, such as transformers and diffusion models.

Key Capabilities & Innovations

  • Breaking the Species Barrier: Achieves fusion of fundamentally different models, enabling cross-species model merging previously considered impossible.
  • AI Embryo Creation: Forms an initial "AI embryo" from fused DNA, serving as a foundation for multi-capability intelligence.
  • Virtual Evolutionary Environment: AI embryos undergo simulated evolution over thousands of generations, driven by natural selection to produce new offspring models.
  • Cross-Domain Intelligence: Facilitates the creation of new intelligence by merging expertise from different domains (e.g., Legal LLM + Medical LLM = Forensic LLM).
  • Extreme Efficiency: Claims to achieve results at roughly 1/10,000 of the time and cost compared to training a new foundation model.

Merge Information

The model was created by merging "Father Model 1: Qwen/Qwen3-4B-Instruct-2507" and "Mother Model 2: Qwen/Qwen3-4B-Thinking-2507". The validation task accuracy for merge ratio optimization was 88.56%. It's important to note that this validation score is a proxy metric for merge optimization and not an LLM benchmark score for language generation performance.

Outlook

This research aims to open doors to a new generation of model creation, expressed as "Foundation a + Foundation b = Foundation abXc," focusing on the evolution and fusion of AI intelligence rather than just reducing training costs.