The mid-sized member of the Lemma model family by Lethean. An EUPL-1.2 fork of Gemma 4 E4B with the Lethean Ethical Kernel (LEK) merged into the weights.

This repo hosts the MLX 4-bit build for native Apple Silicon inference via mlx-lm and mlx-vlm. For the GGUF playground (Ollama, llama.cpp) see lthn/lemma. For the unmodified Google base see LetheanNetwork/lemma.

EUPL-1.2. See Gemma Terms of Use for upstream base model terms.