Qwen2.5-0.5B-Instruct โ€” Backpack GGUF

๐ŸŽ’ Backpack Verified

GGUF quantizations of Qwen/Qwen2.5-0.5B-Instruct, tested for llama.cpp-compatible text inference and packaged for Backpack.

Model

Property Value
Original model Qwen/Qwen2.5-0.5B-Instruct
Original publisher Qwen
Upstream revision 7ae557604adf67be50417f59c2c2f167def9a775
Architecture Qwen2ForCausalLM
Parameters 494,032,768
Context length 32,768
Input modalities text
Output modalities text
License apache-2.0

Available packages

Quantization Size Approx. RAM Recommended for
Q4_K_M 379.4 MiB 1.54 GB Most users
Q5_K_M 400.6 MiB 1.57 GB Higher quality
Q8_0 506.5 MiB 1.72 GB Plenty of memory

Memory values are estimates, not guarantees. Runtime configuration and context length change actual use.

Backpack recommendation

Recommended: Q4_K_M. It usually offers a practical quality, size, and speed balance for local inference.

Run with llama.cpp

Using the llama.cpp revision recorded below:

llama-cli --model Qwen2.5-0.5B-Instruct-Q4_K_M.gguf --conversation

Run with Backpack

These artifacts and backpack-model.yaml are prepared for the Backpack AI workspace.

Validation

Package Integrity Load Inference Tokenizer
Q4_K_M passed passed passed passed
Q5_K_M passed passed passed passed
Q8_0 passed passed passed passed
  • Packaged: 2026-08-25T20:09:53.257172+00:00

  • llama.cpp revision: de699957b92f490efebad149665b0dccf127eaff

  • SHA-256 checksums: see checksums.sha256

  • Qwen2.5-0.5B-Instruct-Q4_K_M.gguf: f58616eebad692c29540d110551e0adb4d43c2456857dce7a74be369a3e035ba

  • Qwen2.5-0.5B-Instruct-Q5_K_M.gguf: 2dfb3fc4a087c12ba0f05825a7501bc4fe8060f32762622b917cbe6bccbbb128

  • Qwen2.5-0.5B-Instruct-Q8_0.gguf: 4c110cbf4f201deda239f2c2863e98b535f52f1040f5cf070ed2544ffed37fa2

Provenance

The source model was resolved to immutable revision 7ae557604adf67be50417f59c2c2f167def9a775. It was converted with llama.cpp's convert_hf_to_gguf.py and quantized with llama-quantize; the exact tested revision is recorded above and in backpack-model.yaml.

License and attribution

Upstream declares apache-2.0. Review the upstream model card and comply with all applicable terms.

Backpack does not claim ownership of the original model. These artifacts are packaged and quantized distributions of the upstream model.

Disclaimer

Quantization can alter output quality. Memory estimates vary with runtime configuration, context length, and hardware.

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