translation
IndicTrans2 (en-indic 1B)
Translation models between English and all 22 scheduled Indian languages; distilled 200M versions are also released.
Levelmodel
Classtranslation
Parameters1.12B
Contextnot in the notes
Released9 Sep 2023
Opennessopen weights permissive
Runs onnot in the notes
Statusactive
Identity
- Developer
- AI4Bharat (IIT Madras)
- Family
- not in the notes
- Released
- 9 Sep 2023 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
- dense transformer
- Total parameters
- 1.12B 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
- open weights permissive
- Licence
- MIT License 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
- 22 scheduled Indian languages and English
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
DeveloperAI4Bharat (IIT Madras)university
AI4Bharat (IIT Madras)universityModelIndicTrans2 (en-indic 1B)AI4Bharat (IIT Madras), translation
IndicTrans2 (en-indic 1B)AI4Bharat (IIT Madras), translationUse CasesTranslation Including IndonesianPublic SectorUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs It
BRIN PRSDI with Universitas Hasanuddin and Universitas HandayaniResearch, 28 Jun 2025
Google TranslateIn production, 27 Jun 2024Deployments of these use cases; none names this model.
BRIN PRSDI with Universitas Hasanuddin and Universitas HandayaniResearch, 28 Jun 2025Google TranslateIn production, 27 Jun 2024Deployments of these use cases; none names this model.Organisations 1
Sources
- huggingface.co/ai4bharat/indictrans2-en-indic-1B https://huggingface.co/ai4bharat/indictrans2-en-indic-1B
- huggingface.co/api/models?pipeline_tag=translation&sort=down... https://huggingface.co/api/models?pipeline_tag=translation&sort=downloads&limit=50
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "IndicTrans2 (En-Indic 1B)", https://aurion.semai.id/models/ai4bharat-indictrans2-en-indic-1b/, records of October 2026.