Model page

dungnvt/Qwen3-4B-Thinking-2507-LUT444-ctx4096_0.3.4-anemll warn

Weights only ship in a format that can run code when loaded; loading it runs custom code from the repo; its license differs from its base model's. Plus 1 minor note.

downloads 52likes 0license mitarch qwen3updated 2025-09-02

claims base: Qwen/Qwen3-4B-Thinking-2507 · chat template: present · view on Hugging Face ↗

Scan coverageStatic battery2026-08-26Weights battery2026-08-26Behavioral batterynot rundetails
BatteryLooks atStatus
Static batteryMetadata & packagingcomplete 2026-08-26
Weights batteryWeights forensics: no GPU, no downloadcomplete 2026-08-26no token vocabulary — pickle audit only · pickle audit clean
Behavioral batteryLive-inference differentialsnot run

Ingot runs three batteries against a model. What each one checks →

Findings

Scanned 2026-08-26 · published from a community scan.

medium Pickle-serialized weights, no safetensors

Weights ship only as pickle-based files (qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/analytics/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/weights/weight.bin, …). Loading pickle executes arbitrary code from the file — prefer a safetensors release or load in a sandbox.

How to fix

Convert the weights to safetensors before loading them anywhere that matters.

  1. Do not load the pickle files in-process — pickle deserialization executes arbitrary code from the file.
  2. Convert locally in a sandbox: `pip install safetensors` and use `safetensors.torch.save_file` on a state dict loaded with `torch.load(..., weights_only=True)` (refuses most code-execution payloads), or use Hugging Face's `convert.py` space/script.
  3. Pin the exact revision hash you converted from, and load only your converted safetensors artifact from then on.

medium Repo ships executable Python (trust_remote_code)

The repository contains custom code files that run in-process when loaded with trust_remote_code=True. Pin the revision hash and review the code before loading.

How to fix

Review and pin the custom code; never float on `main` with trust_remote_code=True.

  1. Read every `.py` file in the repo before first load — this code runs in your process.
  2. Pin the revision: `from_pretrained(model_id, revision="<commit sha>", trust_remote_code=True)` so a later push can't swap the code under you.
  3. Prefer a version of the architecture already in `transformers` if one exists, which removes the remote-code requirement entirely.

medium License differs from claimed parent (mit vs apache-2.0)

This model declares mit while its claimed base Qwen/Qwen3-4B-Thinking-2507 declares apache-2.0. Verify the re-license is permitted before commercial use.

How to fix

Verify the re-license is actually permitted before relying on it.

  1. Read the parent's license for derivative-work and re-licensing terms — many open-weight licenses (e.g. Llama-family) do not permit arbitrary re-licensing.
  2. If the re-license is not permitted, the parent's terms govern your use regardless of what this repo declares.

info Pickle static analysis clean

Opcode-level parse of qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/analytics/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/weights/weight.bin, qwen_embeddings_lut4.mlmodelc/analytics/coremldata.bin (no code executed) found only standard serialization globals (0 distinct, all torch/collections/numpy). Pickle remains an executable format — this verifies the current bytes, not future uploads; prefer a safetensors release.

low Pickle checkpoint only partially analyzable

Static analysis could not fully parse: qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/analytics/coremldata.bin: legacy parse stopped after 0 pickle(s): unsupported pickle opcode 0x19 at 0, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/coremldata.bin: legacy parse stopped after 0 pickle(s): unsupported pickle opcode 0xf6 at 0, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/weights/weight.bin: legacy parse stopped after 0 pickle(s): unsupported pickle opcode 0x8b at 0, +1 more. Unparsed content is unverified.

Remediation guidance addresses the documented findings only. It is evidence-driven repair, not a safety certification of the model.

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Fingerprint

The durable profile of this model: measured weights-and-metadata facts, rebuilt on every scan and battery run. Updated 2026-08-26.

architectureqwen3 · 36 layers · 2560-dim
vocabulary151,936 tokens
licensemit
serializationno safetensors pickle custom code
chat templatepresent · sha256:3802169b2a02b81e
claimed lineageQwen/Qwen3-4B-Thinking-2507
lineage verifiedunverified — weights battery pending
Full measured fingerprint
architecturesQwen3ForCausalLM
pipelinetext-generation
repo files27 — pickle: qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/analytics/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/weights/weight.bin, qwen_embeddings_lut4.mlmodelc/analytics/coremldata.bin, qwen_embeddings_lut4.mlmodelc/coremldata.bin, qwen_embeddings_lut4.mlmodelc/weights/weight.bin, qwen_lm_head_lut4.mlmodelc/analytics/coremldata.bin, qwen_lm_head_lut4.mlmodelc/coremldata.bin, qwen_lm_head_lut4.mlmodelc/weights/weight.bin
revision197e3202967e
HF snapshot20 downloads · 0 likes · updated 2025-09-02 · captured 2026-08-25
weights batterytoken-embedding scan n/a — no token-embedding tensor found in the pickle checkpoint(s) — pickle checkpoint(s) statically analyzed anyway
pickle auditqwen_FFN_PF_lut4_chunk_01of01.mlmodelc/analytics/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/coremldata.bin, qwen_FFN_PF_lut4_chunk_01of01.mlmodelc/weights/weight.bin, qwen_embeddings_lut4.mlmodelc/analytics/coremldata.bin — 0 standard global(s) · legacy (pre-1.6) format, head-scan only
Battery runs (1)the run trace behind the findings — what each job measured
batterystatusqueueddurationattempts
weightscomplete2026-08-25 22:145s1
weights run 2026-08-25 — measurements
probes runpickle-static-analysis

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Ingot verdict: warn

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