LFM3-1.7B — GGUF (by AtomicChat)

Atomic-Dynamic (AD) GGUF quants of LiquidAI/LFM3-1.7B, a dense short-convolution + gated-attention hybrid.

Each AD rung sets per-tensor types by role (FFN pressed hardest by depth band, attn_gate and attn_k/v kept high, the short-conv mixers tracked with attention, embeddings and head high) rather than a single uniform preset.

Rungs

top-1 is how often the rung picks the same next token as the original BF16 (30-language neutral set); mean KLD is the average divergence from BF16 (lower is better). LFM3-1.7B is a small hybrid model and is fairly quantization-sensitive.

Rung GB on disk bpw top-1 mean KLD
Q8_0 1.85 8.51 96.3% 0.004
AD-Q6_K 1.59 7.31 94.5% 0.010
AD-Q5_K_M 1.31 6.03 90.3% 0.034
AD-Q4_K_M 1.13 5.20 84.6% 0.087
AD-IQ4_XS 1.09 5.02 83.2% 0.105
AD-IQ3_S 0.92 4.23 77.0% 0.203

AD-Q4_K_M is the recommended default. AD-IQ3_S is a research-grade rung (small, lower fidelity). The AD rungs replace llama.cpp's stock presets, which have no imatrix, at every size. Full metrics go to the -metrics repo after audit.

Run (llama.cpp)

Needs a build with LFM3 support (merged in llama.cpp #31252; these files were produced at llama.cpp 19cce69).

llama-cli   -hf AtomicChat/LFM3-1.7B-GGUF:AD-Q4_K_M -p "Hello"
llama-server -hf AtomicChat/LFM3-1.7B-GGUF:AD-Q4_K_M -c 8192 --jinja

Base model & license

Base model: LiquidAI/LFM3-1.7B. License: LFM Open License v1.0 (see LICENSE).

Quants by AtomicChat.

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GGUF
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