lmstudio-community/

LFM2.5-2.6B-MLX-4bit

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Model creator: LiquidAI
Original model: LFM2.5-2.6B
Source revision: dca1825886789bd40b94368f53b1d9ada4c94598
MLX quantization: provided by LM Studio team using mlx_lm

4-bit affine quantized version of LFM2.5-2.6B using a group size of 64, optimized for Apple Silicon.

LM Studio converted the pinned source model from BF16 safetensors to MLX safetensors with mlx-lm 0.30.8 at commit 9c113f7. The weights were changed from the source in format and numerical precision.

The source config.json was changed to add MLX-LM-compatible aliases: block_ff_dim=10752 (matching intermediate_size) and top-level rope_theta=10000000.0 (matching rope_parameters.rope_theta). MLX-LM also added quantization metadata, and tokenizer_config.json was changed to embed the source chat template for compatibility. No other architecture or tokenizer behavior was intentionally changed.

LFM2.5-2.6B is an always-thinking model. Its source chat template begins every assistant turn with <think>; there is no supported template switch to disable reasoning.

This model is distributed under the LFM Open License v1.0. Review the license before using or redistributing the model, including its commercial-use limitation.

🙏 Special thanks to the Apple Machine Learning Research team for creating MLX.

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