Qwen3.5-91b-a10b-LegalReap-Layerdrop6

Qwen3.5-91b-a10b-LegalReap-Layerdrop6 is the depth-reduced companion to PLI Labs' conservative Qwen3.5 legal REAP checkpoint. It starts from the REAP-0.16 model and removes six low-impact decoder layers selected by a calibration-driven layer-importance pass.

This release explores a second compression axis. REAP reduces routed expert capacity; Layerdrop6 reduces depth. The result keeps 216 routed experts per remaining MoE layer and reduces the network from 48 layers to 42 layers.

This is a research/evaluation release, not an unsupervised legal advice system. Legal use requires attorney supervision and independent source verification.

Release Positioning

The Layerdrop6 model is intentionally presented as a companion artifact, not as a replacement for the 48-layer REAP-0.16 checkpoint. It is for evaluators who want to compare legal behavior across:

  • the original Qwen3.5-122B-A10B base model;
  • the conservative expert-reduced REAP-0.16 checkpoint;
  • a smaller depth-reduced derivative of that checkpoint.

Model Details

Field Value
Model family Qwen3.5 MoE
Publisher PLI Labs / Proprietary Legal Intelligence
Release status Research candidate
Parent checkpoint ProprietaryLegal/Qwen3.5-104b-a10b-LegalReap
Original base model Qwen/Qwen3.5-122B-A10B
Base license Apache-2.0
Format Transformers/safetensors checkpoint
Architecture Qwen3_5MoeForCausalLM
Compression method REAP expert reduction plus whole-layer drop
Dropped layer indices 8, 9, 12, 13, 16, 17
Hidden size 3072
Layers 42
Parent layers 48
Routed experts 216 per remaining MoE layer
Original routed experts 256 per MoE layer
Experts per token 8 routed experts
Attention heads 32
Key/value heads 2
Head dimension 256
Vocabulary size 248,320
Indexed weight entries 27,855
Indexed tensor bytes 182,327,694,336
Estimated total parameters about 91B
Contact nick@proprietarylegal.com

Intended Use

This candidate is intended for:

  • legal-domain compression research;
  • side-by-side evaluation against the 48-layer REAP-0.16 model;
  • lawyer-supervised legal drafting and synthesis experiments;
  • source-grounded summarization and review experiments;
  • local or private evaluation by legal teams.

Out-of-Scope Use

Do not use this candidate for:

  • unsupervised legal advice;
  • final court filings without attorney review;
  • citation generation without independent verification;
  • production deployment based only on this model card;
  • claims that layer removal improves legal capability without benchmark support.

Method Summary

The parent REAP-0.16 checkpoint was produced by routed-expert pruning from Qwen3.5-122B-A10B. This companion model then removes six decoder layers:

8, 9, 12, 13, 16, 17

Those layer indices were selected from a calibration-driven layer-importance pass. Public documentation intentionally does not identify private legal source items used for calibration or evaluation.

Evaluation Status

Status: research candidate.

The checkpoint is structurally complete and suitable for evaluation. Public aggregate legal benchmark tables are not yet attached to this card. Until those tables are published, treat the model as a candidate for research and internal evaluation rather than a validated production legal model.

Privacy Boundary

This public release intentionally excludes:

  • client names;
  • matter names;
  • legal source item titles;
  • private calibration prompts;
  • attorney-client communications;
  • privileged work product;
  • local hostnames, private paths, credentials, or tokens.

Limitations

  • Layer removal can produce different degradation patterns from expert pruning.
  • Strong fluency is not proof of legal reliability.
  • Public aggregate evaluation tables are still pending.
  • This is not an expert-merged checkpoint; it is a Layerdrop6 derivative of an expert-reduced REAP checkpoint.
  • All legal outputs require attorney review and source verification.

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