From 114d9afdcddf75f23ede3f6a4f9dc64e1e3b733c Mon Sep 17 00:00:00 2001
From: Ronald Tse <ronald.tse@gmail.com>
Date: Sat, 5 Sep 2026 21:57:10 +0200
Subject: [PATCH] release: ara-diac-small-2.1-fp16 (fp16, parity cer_delta
 0.0714pp on 2480 samples)

---
 models.yaml                                   | 13 +++++++
 .../ara-diac-small-2.1-fp16.metadata.yaml     | 39 +++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 models/ara-diac-small-2.1/ara-diac-small-2.1-fp16.metadata.yaml

diff --git a/models.yaml b/models.yaml
index a3ec745..667cb80 100644
--- a/models.yaml
+++ b/models.yaml
@@ -356,3 +356,16 @@ models:
       - {name: der_student_fullset, value: 5.784, source: interscript/interscript-ml docs/RESULTS.md#layerdrop-6ep}
     parity: {samples: 2480, cer_delta: 0.0589}
     license: BSD-3-Clause
+  ara-diac-small-2.1-fp16:
+    task: diacritization
+    scripts: [Arab, Arab]
+    precision: fp16
+    filename: ara-diac-small-2.1-fp16.zip
+    url: https://github.com/interscript/interscript-ml/releases/download/ara-diac-small-2.1/ara-diac-small-2.1-fp16.zip
+    sha256: 395ee72137d1cdfa9cd53bf167ad0d2f5fe5cbf9a5b62f118e0c9e0fa63c972d
+    size: 706351903
+    metrics:
+      - {name: der_teacher_fullset, value: 2.289, source: interscript/interscript-ml docs/RESULTS.md#run-006-r7-muon}
+      - {name: der_student_fullset, value: 4.5701, source: interscript/interscript-ml docs/RESULTS.md#run-006-r7-muon}
+    parity: {samples: 2480, cer_delta: 0.0714}
+    license: BSD-3-Clause
diff --git a/models/ara-diac-small-2.1/ara-diac-small-2.1-fp16.metadata.yaml b/models/ara-diac-small-2.1/ara-diac-small-2.1-fp16.metadata.yaml
new file mode 100644
index 0000000..26fcaf7
--- /dev/null
+++ b/models/ara-diac-small-2.1/ara-diac-small-2.1-fp16.metadata.yaml
@@ -0,0 +1,39 @@
+format: imf-v1
+id: ara-diac-small-2.1
+task: diacritization
+source_script: Arab
+target: Arab
+tokenizer: bytes
+opset: 14
+decoder: kv
+precision: fp16
+license: BSD-3-Clause
+trained_from: 'sequence-level KD from the r7 canonical teacher (rababa_arabic_byt5/run-007-news/best,
+  2.2864 windowed DER-CE full protocol): fresh greedy r7 labels on the same r5-units
+  corpus/limits as ara-diac-small-1.0, Muon optimizer (E3-adopted), vanilla ByT5-small
+  (E4, pre-registered gate <= 6.26). Checkpoint rababa-checkpoints:/rababa_arabic_distill_small/run-007-r7-muon-6ep/best.
+  The two measured wins compound: 8.259 -> 4.8218 full-set windowed DER-CE (teacher
+  reproduces 2.289 in-run vs documented 2.2864) — a 42% error reduction on the 1.0
+  release at the same architecture and artifact size. Still misses the strict teacher+0.5pp
+  gate (+2.53pp; miss disclosed); the E2/E3 factorial attributes the residual to domain
+  coverage.'
+metrics:
+- name: der_teacher_fullset
+  value: 2.289
+  protocol: windowed DER-CE (1400-byte windows, word-boundary split, greedy, haraqat-projected,
+    Misraj evaluator); full 1,200-paragraph SadeedDiac-25; in-run reproduction of
+    the documented 2.2864 (r7 canonical teacher)
+  source: interscript/interscript-ml docs/RESULTS.md#run-006-r7-muon
+- name: der_student_fullset
+  value: 4.5701
+  protocol: same full-set harness; E4 (r7 teacher labels + Muon, vanilla ByT5-small)
+    vs the 8.259 AdamW/r6-labels 1.0 release — a 42% error reduction at identical
+    architecture and artifact size
+  source: interscript/interscript-ml docs/RESULTS.md#run-006-r7-muon
+parity:
+  samples: 2480
+  cer_delta: 0.0714
+sha256:
+  decoder-kv.onnx: 26f00e0e79e4ccdde7c679bb05e4b1a73c5cf622d56559d3c89abfafeeaada7f
+  decoder.onnx: 7254c862449069cc55ad18dd9921f5e242052401a930d44cea3e2816bc6f5b16
+  encoder.onnx: 70fb31dab3d9aa0f187a017febcfdc02089e2d85d535a1000ade8d83c683b4da