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Teradata/
harrier-oss-v1-0.6b

Name: harrier-oss-v1-0.6b
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Read the disclaimer below before using this model.

harrier-oss-v1-0.6b -- ONNX for Teradata BYOM

This repository hosts an ONNX-converted version of the upstream model microsoft/harrier-oss-v1-0.6b, packaged for the Teradata Vantage mldb.ONNXEmbeddings BYOM function. It is not the original PyTorch model -- only the inference graph and tokenizer needed for in-database embedding generation.

What's different from upstream:

Format: ONNX (opset 14, IR version 8 -- BYOM 6+ compatible), produced from the upstream weights with architecture-aware post-processing baked in.
Precision: dynamic int8 quantization. See the variants table below for what is shipped for this model.
Pooling and post-processing: this graph emits the raw sentence_embedding tensor. Pooling rule is last_token and the model expects a query-time instruction prefix (see "Instruction prefix" below).
Verification: every variant's cosine fidelity vs. the upstream PyTorch reference is recorded on a fixed FLORES-200 sample. Numbers may not generalize to your data.

Model details


Upstream repo	`microsoft/harrier-oss-v1-0.6b`
Architecture	`Qwen3Model` (decoder)
Parameters	596,049,920
Output dimensions	1024
Pooling	`last_token`
Instruction prefix	yes
Max input tokens (advertised)	32768
Languages	93 (af, am, ar, +90 more (93))
License	mit
ONNX opset	14
ONNX IR version	8 (BYOM 6+ compatible)

Full language list (93)

af
am
ar
as
az
be
bg
bn
br
bs
ca
cs
cy
da
de
el
en
eo
es
et
eu
fa
fi
fr
fy
ga
gd
gl
gu
ha
he
hi
hr
hu
hy
id
is
it
ja
jv
ka
kk
km
kn
ko
ku
ky
la
lo
lt
lv
mg
mk
ml
mn
mr
ms
my
ne
nl
no
om
or
pa
pl
ps
pt
ro
ru
sa
sd
si
sk
sl
so
sq
sr
su
sv
sw
ta
te
th
tl
tr
ug
uk
ur
uz
vi
xh
yi
zh

Instruction prefix

This model was trained to expect a short natural-language instruction prepended to each query at encode time. Document side stays unprefixed. The ONNX graph itself is prefix-agnostic -- the prefix is plain text that flows through the tokenizer. Downstream BYOM SQL is responsible for prepending it (typically with a CTE that concatenates the instruction with each input row).

The upstream model card configures these named prompts (snapshot at publish time -- see the upstream model card for the canonical list and any updates):

web_search_query -- web-search query retrieval
sts_query -- semantic textual similarity (STS)
bitext_query -- bitext mining / cross-lingual retrieval

You can also pass an ad-hoc instruction in the same Instruct: ... \nQuery: ... shape; for example, Instruct: Retrieve semantically similar text\nQuery: <your text>. The canonical and most up-to-date list lives in the upstream model card's config_sentence_transformers.json -- see microsoft/harrier-oss-v1-0.6b.

Quantization variants

This repository ships the following variants. Quality numbers are measured against the upstream PyTorch reference on a fixed FLORES-200 sample. The Size column is the on-disk size of the ONNX weight file in megabytes (MB, 10^6 bytes).

Variant	Size (MB)	p50 cosine	R@1
`ffn_skip`	1391.8	0.997669	0.958

How to read the quality columns:

p50 cosine is the median cosine similarity between this variant's embeddings and the fp32 ONNX reference, computed over a fixed evaluation set. Higher means closer to the unquantized model; 1.0 is identical.
R@1 is top-1 retrieval consistency: if you use this variant as a search index, R@1 is the fraction of queries that get the same nearest neighbor as the fp32 reference would. Higher is better.

Notes:

ffn_skip: dynamic int8 with the feed-forward (FFN) MatMul layers kept in fp32, while attention and projection MatMuls stay quantized. The FFN layers are where most of the quantization error in transformer blocks concentrates; leaving them in fp32 recovers most of the quality loss for a modest size increase. The artifact is roughly 3x smaller than fp32 (larger than the per_channel int8 sibling). Ship this variant when retrieval quality is the priority and the per_channel drift on your workload is unacceptable.

Quickstart: using this model with Teradata BYOM

Requires Teradata Vantage with BYOM 6+ (mldb.ONNXEmbeddings).

python

import getpass
import teradataml as tdml
from huggingface_hub import hf_hub_download

repo_id   = "Teradata/harrier-oss-v1-0.6b"
model_id  = "harrier-oss-v1-0.6b"        # arbitrary, used as the BYOM model_id
onnx_file = "onnx/model-ffn_skip.onnx"

# 1. Download the ONNX + tokenizer for the chosen variant.
hf_hub_download(repo_id=repo_id, filename=onnx_file,       local_dir="./")
hf_hub_download(repo_id=repo_id, filename="tokenizer.json", local_dir="./")

# 2. Connect to Vantage.
tdml.create_context(
    host=input("host: "),
    username=input("user: "),
    password=getpass.getpass("password: "),
)

# 3. Load model + tokenizer into BYOM tables (one-time per model_id).
tdml.save_byom(model_id=model_id, model_file=onnx_file,
               table_name="embeddings_models")
tdml.save_byom(model_id=model_id, model_file="tokenizer.json",
               table_name="embeddings_tokenizers")

Then call mldb.ONNXEmbeddings against an input table whose txt column carries the strings to embed:

sql

SELECT *
FROM mldb.ONNXEmbeddings(
    ON (SELECT id, txt FROM your_input_table) AS InputTable
    ON (SELECT model_id, model FROM embeddings_models
         WHERE model_id = 'harrier-oss-v1-0.6b') AS ModelTable DIMENSION
    ON (SELECT model_id, tokenizer FROM embeddings_tokenizers
         WHERE model_id = 'harrier-oss-v1-0.6b') AS TokenizerTable DIMENSION
    USING
        Accumulate('id')
        ModelOutputTensor('sentence_embedding')
        OutputFormat('FLOAT32(1024)')
        OverwriteCachedModel('*')
) AS t
ORDER BY id;

Pooling rule last_token is applied inside the converted ONNX graph -- the output tensor named above already contains the pooled, post-processed embedding vector. For instruction-prefix models, prepend the recommended instruction text to each input txt before calling ONNXEmbeddings; the prefix is plain text that the tokenizer handles unchanged.

Original model attribution

The original weights and training methodology belong to Microsoft. Please cite their work, not this repository, in academic contexts. The canonical upstream model card is at microsoft/harrier-oss-v1-0.6b; refer to it for benchmarks, training details, intended use, and citation information.

Reporting issues

For ONNX-conversion or BYOM-compatibility issues specific to this Teradata-converted artifact, please open a Discussion on this model's Hugging Face page. Questions about the underlying model quality, training, or intended use should go to the upstream maintainer's model card.

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