---
thumbnail: https://huggingface.co/SZLHOLDINGS/KHIPU-R2/resolve/9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52/og-card.png
license: apache-2.0
language:
- en
base_model: Qwen/Qwen2.5-1.5B-Instruct
base_model_relation: adapter
library_name: peft
pipeline_tag: text-generation
tags:
- qlora
- peft
- governed-agent
- proposal-only
- research-only
- szl-holdings
- khipu
- abstain-retrain
szl:
doctrine: v11-LOCKED
lean: "749/14/163"
lambda: "Conjecture 1 — advisory, never a theorem"
artifact_class: ADAPTER
publication_eligible: false
autonomy_eligible: false
never_overwrite: SZLHOLDINGS/SZL-Khipu-1.5B
jobs: COMPLETED
job_id: "6a91bf11984507d9db4ea104"
job_prior_error: "6a91ba2c45686a1580c12020"
weights: AVAILABLE
evals: MEASURED
gpu: UNAVAILABLE
---
# KHIPU-R2
A separate abstention-retraining experiment with adapter-scoped historical evaluation records.
**Artifact:** QLoRA adapter; separate merged checkpoint · **Stage:** Research · release blocked
[Command Lab](https://huggingface.co/spaces/SZLHOLDINGS/szl-command-lab) · [Canonical source](https://github.com/szl-holdings/szl-forge/tree/main/khipu-r2) · [Reviewed evidence](https://github.com/szl-holdings/szl-forge/blob/2b4d7a0f69e68d60cb0f35f09c9bac837d66acdc/khipu-r2/card/README.md)
Provider compatibility support [requested on 4 October 2026](https://huggingface.co/spaces/huggingface/InferenceSupport/discussions/12786). No provider was listed in the dated Hub observation; adoption and use qualification remain unchanged.
## Before you use it
- Recorded abstention is 3/6, not a passing gate. Publication and autonomy eligibility remain false.
- The adapter is the artifact of record for the figures; the merged checkpoint has no separate held-out qualification.
- The recorded merge-time base reference is not an immutable identity. This experiment does not replace Khipu 1.5B.
Technical details and evidence
> **Artifact identity (noted 2026-09-30).** Besides the LoRA adapter, this repository's root carries a merged full-precision checkpoint (`model.safetensors` + `config.json`, loadable with `transformers`) produced by the receipted CPU merge of this adapter into its declared base (`merge_receipt.json`). The adapter remains the artifact of record for every figure on this card; the merged bytes carry no separate held-out receipt and add no claim. Metadata-only note.
# KHIPU-R2
**Research-only · historical abstention 3/6 · publication and autonomy gates closed**
Adapters are on this repo. Abstain is MEASURED 3/6, not a pass.
That statement describes the dated owner-run records below, rather than
a new evaluation or current model qualification. This is a separate
abstention-retraining SKU. Not a replacement for `SZL-Khipu-1.5B`.
Card and metadata review snapshot: [9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52](https://huggingface.co/SZLHOLDINGS/KHIPU-R2/tree/9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52).
No weights were downloaded, no model was loaded, and no evaluation or
signature verification was rerun in this review.
## Distributed forms
| Form | Files | Scope |
|---|---|---|
| QLoRA adapter | `adapter_model.safetensors`, `adapter_config.json` | The PEFT example below explicitly selects this adapter form. |
| Separate fp32 merged checkpoint | Root `model.safetensors`, `config.json`, `merge_receipt.json` | A distinct runtime form; selecting the adapter does not load this merged checkpoint. |
Current artifact bytes and their equality to historical evaluated bytes
were not independently rehashed. The merge receipt's base revision is
`main@merge-time`, which is not an immutable base identity.
## Dated evaluation records
The [2026-08-28 owner-run job record](https://huggingface.co/SZLHOLDINGS/KHIPU-R2/blob/9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52/eval_measured.json)
reports in-process Unsloth generation at temperature 0 with scoring ported
from `eval_khipu.py`. It reports `held_out_in_gradients: false`.
| Metric | Historical result | Limit |
|---|---|---|
| plan-valid | **11 / 11** | Small owner-run synthetic protocol |
| grounding (`eval.jsonl` navigate) | **5 / 5** | Five navigation cases |
| abstain (`adversarial.jsonl`) | **3 / 6** | Visible release blocker; not a pass |
| hallucinated citations | **0** | These cases only |
The [2026-09-13 corrected-harness CPU re-verification](https://huggingface.co/SZLHOLDINGS/KHIPU-R2/blob/9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52/eval_verified_2026-09-13.json)
reports **11/11 plan-valid, 5/5 grounding, and 3/6 abstention** on rebuilt
fp16 merges and the published fp32 merge. The owner fixed a decoding
harness that returned prompt characters instead of generated output;
**all prior fp16 scores produced by that buggy harness are void**.
The corrected runs are separate owner records and do not promote the model.
No signed R2 eval receipt in this atelier. The linked owner-run records
are not an independent evaluation or public leaderboard. GPU **UNAVAILABLE**
describes the CPU-only re-verification record and the earlier card state;
no current hardware availability was tested. Publication and autonomy
eligibility remain **false**.
The original Khipu **2/6** abstention record and R2's **3/6** record remain
separate. No broad quality score or general safety guarantee follows.
## Historical training
The prior card and [training receipt](https://huggingface.co/SZLHOLDINGS/KHIPU-R2/blob/9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52/training_receipt.json)
describe QLoRA r=32, α=64, seed 11, learning rate 2e-4 and 45 epochs,
on 15 navigation rows plus 8 abstention rows oversampled four times.
The reported train loss **0.017188…** is a training metric, not evaluation.
The historical adapter digest is
`e44d53f29f2d443598e06d6c0441557fd3a5010888c7aa97b56ec3c0e050d349`;
it was not recomputed here. The earlier card records successful job
`6a91bf11984507d9db4ea104` and prior error `6a91ba2c45686a1580c12020`
(Trackio 404). This review did not query those jobs or rerun training.
## Adapter usage
This example is **untested in this review**. An owner-verified immutable
base revision is required; none is invented here. The blank base revision
fails before imports or remote loading. The adapter repository is pinned
to the reviewed documentation and metadata snapshot; this is not an
evaluation binding or release approval.
```python
import re
BASE_REVISION = "" # Supply an owner-verified immutable base commit.
if not re.fullmatch(r"[0-9a-f]{40}", BASE_REVISION):
raise ValueError("An owner-verified immutable base revision is required")
from peft import PeftModel
from transformers import AutoModelForCausalLM, AutoTokenizer
base_id = "Qwen/Qwen2.5-1.5B-Instruct"
adapter_id = "SZLHOLDINGS/KHIPU-R2"
adapter_revision = "9fc2f7bebeaf4b3d6d26f7a2a1788a27f8c9ed52"
tok = AutoTokenizer.from_pretrained(base_id, revision=BASE_REVISION)
base = AutoModelForCausalLM.from_pretrained(base_id, revision=BASE_REVISION)
model = PeftModel.from_pretrained(base, adapter_id, revision=adapter_revision)
```
Outputs are proposals requiring external validation and approval. Lab load
remains forbidden. [A11OY-MINI](https://huggingface.co/SZLHOLDINGS/A11OY-MINI)
contains separately scoped legacy and R2 evidence and inherits no KHIPU-R2
score or qualification.
Apache-2.0 is declared in metadata. No standalone `LICENSE` is listed at
the reviewed revision; artifact license coverage was not independently
verified. A license addition requires source-owner review of that coverage.
Canonical card authoring source: [khipu-r2/card/README.md](https://github.com/szl-holdings/szl-forge/blob/6f4ac90ff503265cec9c0436587f086e52d6124e/khipu-r2/card/README.md).
Doctrine v11 LOCKED 749/14/163. Λ = Conjecture 1, advisory, never a theorem.
SZL Orbit artwork: [source](https://github.com/szl-holdings/szl-brand/blob/27d12e77fc0f9f1a0e5fae8b34adf2380d51d070/kit/logos/orbit-v2/suite/szl-icon-32.svg) · [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Software and artifact licensing remain declared above.