Qwen2.5-1.5B-Instruct โ€” Pollard

Pollard shrank this model: 3.08 GB (f16) โ†’ 0.94 GB โ€” 69% smaller, 3.3ร— down.

The smallest rung here; larger, higher-fidelity rungs are listed below.

format this model's size
f16 3.08 GB
Q8_0 ~1.63 GB
Q6_K ~1.26 GB
Q4_K_M ~0.89 GB
PollardMix (this repo's Q4_K_S) 0.94 GB

Pollard builds of Qwen/Qwen2.5-1.5B-Instruct made with Pollard Weights โ€” a ladder of measured-allocation quants (bits placed by per-layer sensitivity, not a uniform crush).

Standard GGUF โ€” runs in stock llama.cpp / ik_llama.cpp, Ollama, LM Studio. Trellis (IQ*_KT) files need ik_llama.cpp; the K-quants run anywhere.

Model details

Parameter count ~1.5B
Architecture qwen2
Input support text
imatrix yes โ€” see calibration
Perplexity measured yes โ€” table below

Which file should I choose?

Every rung is the same weights, sized to a different RAM budget by the measured allocation. Pick the largest one that fits your machine with room for context:

  • ~3 GB RAM / VRAM โ†’ Q6_K (1.27 GB).
  • ~3 GB RAM / VRAM โ†’ Q5_K_M (1.13 GB).
  • ~3 GB RAM / VRAM โ†’ Q4_K_S (0.94 GB).

Available files

file PPL size tok/s Mean KLD notes
Qwen2.5-1.5B-Instruct-Pollard-Q4_K_S.gguf 0.0315 0.94 GB 95.4 โ€” Q4_K_S
Qwen2.5-1.5B-Instruct-Pollard-Q5_K_M.gguf 0.0092 1.13 GB 73.1 โ€” Q5_K_M
Qwen2.5-1.5B-Instruct-Pollard-Q6_K.gguf 0.0050 1.27 GB 73.2 โ€” Q6_K

tok/s is hardware-specific; the machine it was measured on is stated in the errata.

The imatrix win

Held-out KL-divergence vs the full f16 model (lower = closer), Q4_K_M at matched size:

build size mean KL
Q4_K_M with imatrix 0.99 GB 0.0266
Q4_K_M without imatrix 0.99 GB 0.0448

Same bits, ~40% lower KL โ€” that is the entire reason these are imatrix builds.

Download a specific file

pip install -U "huggingface_hub[cli]"
hf download PollardWeights/Qwen2.5-1.5B-Instruct-Pollard \
  --include "Qwen2.5-1.5B-Instruct-Pollard-Q4_K_S.gguf" --local-dir ./

How to run

These are standard GGUF and run with llama.cpp:

llama-server -hf PollardWeights/Qwen2.5-1.5B-Instruct-Pollard:Q4_K_S

or from a local file:

llama-cli    -m Qwen2.5-1.5B-Instruct-Pollard-Q4_K_S.gguf -ngl 99 -p "Explain why the sky is blue."
llama-server -m Qwen2.5-1.5B-Instruct-Pollard-Q4_K_S.gguf -ngl 99      # OpenAI-compatible API + web UI at :8080

They also work in anything built on llama.cpp โ€” LM Studio, koboldcpp, Jan, ramalama, Ollama (ollama run hf.co/PollardWeights/Qwen2.5-1.5B-Instruct-Pollard).

imatrix (calibration)

The importance matrix (Qwen2.5-1.5B-Instruct-Pollard.imatrix, included) was computed on a mixed-domain corpus so the matrix sees every register the model serves.

ARM / AVX

llama.cpp repacks weights into an interleaved layout at load time for faster inference on ARM and AVX machines โ€” no special file needed, online repacking covers these quants. The old Q4_0_4_4/4_8/8_8 variants are not required.

Errata

  • Trellis (IQ*_KT) quants need ik_llama.cpp to build/run; K-quants run in any recent llama.cpp.
  • Measured allocation places bits by per-layer sensitivity under a size budget.
  • Single machine; replication invited.

Credits & license

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

Downloads last month
265
GGUF
Model size
2B params
Architecture
qwen2
Hardware compatibility
Log In to add your hardware

4-bit

5-bit

6-bit

Inference Providers NEW
This model isn't deployed by any Inference Provider. ๐Ÿ™‹ Ask for provider support

Model tree for PollardWeights/Qwen2.5-1.5B-Instruct-Pollard

Quantized
(284)
this model