mdbr-leaf-ir 4262131b as Core ML fp16 (m:1845)

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NOTICE

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+mdbr-leaf-ir by MongoDB, revision 4262131b, Apache License 2.0; converted to Core ML by Innerloop.
+
+Source model: https://huggingface.co/MongoDB/mdbr-leaf-ir (revision 4262131b32c3182bd06e67e92ae69d7bd66e0c5c).
+The conversion keeps the model's own mean pooling, its 384-to-768 dense layer and its normalisation inside the
+Core ML program, at fp16 storage. vocab.txt is the model's own WordPiece vocabulary, unchanged.
+The full license text is in LICENSE.

README.md

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+---
+license: apache-2.0
+base_model: MongoDB/mdbr-leaf-ir
+tags:
+- coreml
+- sentence-similarity
+- feature-extraction
+---
+
+# mdbr-leaf-ir, Core ML (fp16)
+
+This is MongoDB's [mdbr-leaf-ir](https://huggingface.co/MongoDB/mdbr-leaf-ir) (revision 4262131b, Apache License 2.0), converted to Core ML by Innerloop for Breadcrumb's search and recall by meaning. All credit for the model goes to MongoDB.
+
+- `leaf.mlmodelc`: the compiled Core ML program, fp16 storage, macOS 14+. Input `input_ids` (int32, shape [1, L], L one of 16, 32, 64, 128, 256, 512; pad with 0). Output `embedding`: the finished 768-float, unit-length vector. The model's own mean pooling, its 384-to-768 dense layer and its normalisation are inside the program.
+- `vocab.txt`: the model's own WordPiece vocabulary (BERT uncased), unchanged.
+- Queries take the prefix `Represent this sentence for searching relevant passages: `; documents take none.
+- `LICENSE` (Apache 2.0) and `NOTICE` carry the attribution.

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+    "metadataOutputVersion" : "3.0",
+    "shortDescription" : "MongoDB\/mdbr-leaf-ir, its own pooling\/dense\/normalize, unit length, buckets [16, 32, 64, 128, 256, 512]",
+    "outputSchema" : [
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+        "hasShapeFlexibility" : "0",
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+        "dataType" : "Float32",
+        "formattedType" : "MultiArray (Float32)",
+        "shortDescription" : "",
+        "shape" : "[]",
+        "name" : "embedding",
+        "type" : "MultiArray"
+      }
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+    "modelParameters" : [
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+        "formattedType" : "MultiArray (Int32 1 × 16)",
+        "type" : "MultiArray",
+        "shape" : "[1, 16]",
+        "name" : "input_ids",
+        "enumeratedShapes" : "[[1, 16], [1, 32], [1, 64], [1, 128], [1, 256], [1, 512]]"
+      }
+    ],
+    "userDefinedMetadata" : {
+      "maxlen" : "512",
+      "com.github.apple.coremltools.version" : "9.0",
+      "com.github.apple.coremltools.conversion_date" : "2026-10-04",
+      "repo" : "MongoDB\/mdbr-leaf-ir",
+      "com.github.apple.coremltools.source" : "torch==2.14.1",
+      "com.github.apple.coremltools.source_dialect" : "TorchScript",
+      "buckets" : "[16, 32, 64, 128, 256, 512]"
+    },
+    "generatedClassName" : "leaf",
+    "method" : "predict"
+  }
+]

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