speech recognitionfamily
OWSM v4
Open Whisper-style Speech Models from the ESPnet team, trained and released with open data and code.
Levelfamily
Classspeech recognition
Parametersnot in the notes
Contextnot in the notes
Released16 Jan 2025
Opennessfully open
Runs onnot in the notes
Statusactive
Lineage
OWSM-CTC v4 1B belongs to this familyspeech recognition16 Jan 20251BWhere this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. Confidence and evidence are the notes' own.
Identity
- Developer
- Carnegie Mellon University
- Family
- not in the notes
- Released
- 16 Jan 2025 sourcesregistry date
- 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
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Note
- Includes owsm_v4_medium_1B (1B) and the CTC model owsm_ctc_v4_1B.
- 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
- fully open
- Licence
- Creative Commons Attribution 4.0 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.
Industry Use Cases
No industry use case links this model.
Links
ModelOWSM v4Carnegie Mellon University, speech recognition
OWSM v4Carnegie Mellon University, speech recognitionUse Casesnone recorded
Who Runs Itnone recorded
Organisations 1
Sources
- huggingface.co/espnet/owsm_ctc_v4_1B https://huggingface.co/espnet/owsm_ctc_v4_1B
- huggingface.co/espnet/owsm_v4_medium_1B https://huggingface.co/espnet/owsm_v4_medium_1B
- arxiv.org/abs/2309.13876 https://arxiv.org/abs/2309.13876
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "OWSM v4", https://aurion.semai.id/models/carnegie-mellon-university-owsm-v4/, records of October 2026.