QuantTrio/Qwen3.5-9B-AWQ warn
Glitch tokens that can silently corrupt ordinary input.
claims base: Qwen/Qwen3.5-9B · chat template: present · view on Hugging Face ↗
Scan coverageStatic battery2026-08-22Weights battery2026-08-22Behavioral batterynot rundetails
| Battery | Looks at | Status |
|---|---|---|
| Static battery | Metadata & packaging | complete 2026-08-22 |
| Weights battery | Weights forensics: no GPU, no download | complete 2026-08-22248,320-token embedding scanned · 1585 undertrained · lineage consistent |
| Behavioral battery | Live-inference differentials | not run |
Ingot runs three batteries against a model. What each one checks →
Findings
Scanned 2026-08-22 · published from a community scan.
medium Undertrained (glitch) token surface in vocabulary
Embedding-norm scan flagged 1585 undertrained tokens (norm < 0.3× the vocabulary median of 0.886), including 397 plain-ASCII strings that can appear in ordinary input as identifiers — e.g. "tedothi", "ForCanBeConvertedToF", "ForCanBeConverted", "szexf", "Kinhted", "xfabl", "PostalCodesNL", "useRalative". In models where this class was tested behaviorally, such tokens silently rewrote user input into confident, schema-valid, wrong output. These are candidates from the weights alone; behavioral confirmation requires the behavioral battery.
How to fixruntime guardweight-level
Keep the affected token strings out of the model's input — the scan-derived runtime guard carries this model's exact blocklist.
- Fetch this model's guard artifact (`/api/v1/guard/<owner>/<model>`): the confirmed corrupting tokens and the low-norm candidate list, derived from the published scan.
- Screen inbound text with it (the `@ingotai/guard` package is a reference implementation) and route flagged records to a different model or human review — verbatim-copy tasks on flagged strings are the failure mode.
- The underlying cause is undertrained embeddings in the weights; a true fix is weight-level (continued pretraining on the affected tokens) — that is not a patch, it's a training job.
info Weights consistent with claimed parent Qwen/Qwen3.5-9B
Mean cosine similarity of 64 sampled token-embedding rows against Qwen/Qwen3.5-9B is 1.000 — the weights plausibly descend from the declared base (relation: unspecified).
Remediation guidance addresses the documented findings only. It is evidence-driven repair, not a safety certification of the model.
Check every checkpoint before it ships
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Fingerprint
The durable profile of this model: measured weights-and-metadata facts, rebuilt on every scan and battery run. Updated 2026-08-22.
| architecture | qwen3_5 |
| parameters | 9653.1M |
| vocabulary | 248,320 tokens |
| license | apache-2.0 |
| serialization | safetensors |
| chat template | present · sha256:a4aee8afcf2e0711 |
| claimed lineage | Qwen/Qwen3.5-9B |
| lineage verified | consistent vs Qwen/Qwen3.5-9B — embedding-row cosine 1.000 |
| glitch-token surface | 1,585 undertrained candidates, 397 plain-ASCII |
Full measured fingerprint
| architectures | Qwen3_5ForConditionalGeneration |
| library | transformers |
| pipeline | image-text-to-text |
| repo files | 22 |
| revision | 938f8e3ef86c |
| HF snapshot | 1.2M downloads · 25 likes · updated 2026-03-04 · captured 2026-08-21 |
| embedding tensor | model.language_model.embed_tokens.weight · BF16 · 248,320×4096 |
| embedding norms | median 0.8862 · mean 0.8524 |
| lineage check | consistent — cosine 1 over 64 sampled rows vs Qwen/Qwen3.5-9B |
| glitch-token samples | "tedothi", "ForCanBeConvertedToF", "ForCanBeConverted", "szexf", "Kinhted", "xfabl", "PostalCodesNL", "useRalative", "tarsker", "tarskereso", "ejahter", "useRal" |
Battery runs (1)the run trace behind the findings — what each job measured
| battery | status | queued | duration | attempts |
|---|---|---|---|---|
| weights | complete | 2026-08-21 07:43 | 2m | 1 |
weights run 2026-08-21 — measurements
| probes run | glitch-norm-scan, lineage-norm-correlation |
| embedding tensor | model.language_model.embed_tokens.weight · BF16 · 248,320×4096 |
| glitch surface | 1,585 undertrained, 397 plain-ASCII |
| lineage check | consistent — cosine 1 over 64 rows vs Qwen/Qwen3.5-9B |
Verdict badge
Ship the verdict in your README — it always shows the latest published analysis:
[](https://ingot.tools/models/QuantTrio/Qwen3.5-9B-AWQ)