language encoder
MPNet base
Encoder pre-trained with masked and permuted language modelling; the base of the widely used all-mpnet-base-v2 sentence embedder.
Levelmodel
Classlanguage encoder
Parameters132.99M
Contextnot in the notes
Released20 Apr 2020
Opennessunknown
Runs onnot in the notes
Statusactive
Identity
- Developer
- Microsoft AI
- Family
- not in the notes
- Released
- 20 Apr 2020 sourcesannouncement page
- Weights published
- –
- Record checked
- 12 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- dense transformer
- Total parameters
- 132.99M sources
- Active parameters
- –
- Checkpoint parameters
- –
- Note
- Parameter count from the safetensors index on Hugging Face.
- Context length
- not in the notes
- Input
- text
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- unknown
- Licence
- not in the notes sources
- Access routes
- open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- not in the notes
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Benchmark Results
The notes record no benchmark result for this model.
Lineage
The notes record no lineage for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperMicrosoft AIbig tech, USA
Microsoft AIbig tech, USAModelMPNet baseMicrosoft AI, language encoder
MPNet baseMicrosoft AI, language encoderR&D TopicsPretrained Bidirectional Text Encoders
Use CasesIndonesian NLU (Classification, NER)Public SectorEmbeddings and Retrieval for SEA LanguagesPublic SectorUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs Itnone recordedDeployments of these use cases; none names this model.
Organisations 1
Sources
- arxiv.org/abs/2004.09297 https://arxiv.org/abs/2004.09297
- huggingface.co/microsoft/mpnet-base https://huggingface.co/microsoft/mpnet-base
- github.com/onnx/models/tree/main/Natural_Language_Proces... https://github.com/onnx/models/tree/main/Natural_Language_Processing/mpnet_Opset16_transformers
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "MPNet Base", https://aurion.semai.id/models/microsoft-mpnet-base/, records of October 2026.