Project AURIONAI Use-Cases Research & Innovation
speech recognition

Deep Speech 2

End-to-end deep learning speech recognition for English and Mandarin, replacing hand-engineered pipelines.

BaiduBaiduChina
Baidu
Levelmodel
Classspeech recognition
Parametersnot in the notes
Contextnot in the notes
Released8 Dec 2015
Opennessunknown
Runs onnot in the notes
Statusactive

R&D Topics

Efficient acoustic encoder architectures for speech recognitionproduced by

Identity

Developer
Baidu
Family
not in the notes
Released
8 Dec 2015 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
other end-to-end RNN with CTC
Total parameters
– sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
audio
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
not in the notes
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.

Sources

  1. arxiv.org/abs/1512.02595 https://arxiv.org/abs/1512.02595
  2. github.com/SeanNaren/deepspeech.pytorch https://github.com/SeanNaren/deepspeech.pytorch

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Deep Speech 2", https://aurion.semai.id/models/baidu-deep-speech-2/, records of October 2026.