Qwen3-30B-A3B โ€” Pollard

Pollard shrank this model: 56.9 GB (f16) โ†’ 7.02 GB โ€” 88% smaller, 8.1ร— down, and under half the size of NVFP4 (~16.2 GB).

The 1-bit-class MoE flagship (IQ1_KT mixed-precision), still beating uniform 1-bit. Want more quality? The IQ3_S / IQ4_XS / Q6_K rungs below are larger, higher-fidelity options.

format this model's size
f16 56.9 GB
Q8_0 ~32.4 GB
Q6_K ~23.4 GB
Q4_K_M / NVFP4 ~18.5 / ~16.2 GB
PollardMix (this repo's IQ1_KT) 7.02 GB

A memory-fit, mixed-precision build of Qwen3-30B-A3B (a 30.5B-param MoE, 3.3B active, 128 experts) made with Pollard Weights. The cold expert bulk (ffn_gate/up_exps) is crushed to 1-bit trellis (IQ1_KT); the router, the residual writer (ffn_down_exps), the shared experts, attention, and the first/last blocks are protected. It sits in the 1-bit size class but reads closer to 2-bit.

This is a standard GGUF โ€” the trellis *_KT files need ik_llama.cpp; the K-quants (Q6_K) run in stock llama.cpp / Ollama / LM Studio.

The numbers (WikiText-2 raw, ctx 2048, 145 chunks; KLD vs Q6_K base)

build role PPL size bpw Mean KLD Median KLD top-1
uniform IQ2_KT 2-bit ceiling 7.28 8.34 GB 2.19 0.134 0.059 84.81%
PollardMix this model 8.57 7.02 GB 1.84 0.310 0.140 77.81%
uniform IQ1_KT 1-bit baseline 9.01 6.57 GB 1.73 0.360 0.174 75.47%

PollardMix beats the uniform 1-bit trellis quant on every metric โ€” PPL โˆ’4.9%, Mean KLD โˆ’14%, Median KLD โˆ’20%, top-1 +2.3 pts โ€” at +6.9% size, under the 2-bit ceiling. Same clean sweep as the 7B/14B dense cards, now reproduced on a MoE โ€” the automap policy generalizes (crush cold experts, protect the router / ffn_down_exps / shared experts / attention).

Allocation (the surgery)

tensor role atom
cold expert bulk (ffn_gate/up_exps) IQ1_KT crushed
ffn_down_exps (residual writer) IQ2_KT protected
ffn_gate_inp (router) Q6_K kept high
shared experts IQ2_KT / IQ3_KT protected
attention q, output IQ2_KT protected
attention k, v IQ1_KT crushed
first-2 / last-2 blocks IQ2_KT protected
token embeddings / output head Q4_K / Q6_K kept

Available files

file size notes
โ€ฆ-Q6_K.gguf 23.4 GB near-lossless
โ€ฆ-IQ4_XS.gguf ~15 GB recommended default
โ€ฆ-IQ3_S.gguf ~13 GB smaller
โ€ฆ-IQ1_KT.gguf 7.02 GB flagship โ€” 1-bit mixed-precision MoE trellis

Usage

# ik_llama.cpp (for the IQ1_KT trellis flagship)
llama-cli -m Qwen3-30B-A3B-Pollard-IQ1_KT.gguf -p "Explain why the sky is blue." --temp 0.7 --repeat-penalty 1.15

# Ollama (Q6_K / K-quant rungs)
ollama run hf.co/PollardWeights/Qwen3-30B-A3B-Pollard

Errata (honest scope)

  • *_KT are ik_llama.cpp trellis quants; build ik_llama.cpp for them (they load in stock llama.cpp too). Q6_K runs anywhere.
  • Chat at the 1-bit tier benefits from --repeat-penalty 1.15.
  • MoE imatrix note: ffn_gate_exps shares its input with ffn_up_exps (SwiGLU), so its importance was taken from up_exps for full expert coverage.
  • Single machine (32 GB RAM / 16 GB GPU); replication invited โ€” pollard --gguf model.gguf --benchmark reproduces the 3-bar board.

Built with Pollard Weights โ€” frontier models, small hardware, no compromise.

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