mmBERT
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A to Z
- A · App
- No
- B · Built By
- JHU
- C · CEO & Politics
- N/A (academic research) — No public partisan activity documented
- D · Date
- 2025
- E · Expertise
- Intermediate+
- F · Free Tier
- Yes
- G · Generates
- Text only
- H · Deployment
- Cloud + Local (open weights)
- I · Inputs
- Text
- J · Jurisdiction
- USA
- K · Key Staffers
- Marc Marone (Co-lead author), Orion Weller (Co-lead author), Benjamin Van Durme (Senior author)
- L · Languages
- English-primary
- M · Model Type
- LLM
- N · Safety Issues
- None reported
- O · Open Source
- Yes — open weights
- P · Pricing
- Free (open weights, MIT)
- Q · AIDb Rating
- 6/10 · AIDb v2.0 (curated): Capability 5/10 · Currency 7/10 · Access 5/10 · Significance 8/10 → 5.85
- R · What Makes It Special
- Multilingual ModernBERT-style encoder from JHU. 1,800+ languages, 3T tokens. First major multilingual encoder refresh since XLM-R.
- S · Stock / Status
- University
- T · Training Cutoff
- [UNKNOWN]
- U · Users
- [UNKNOWN]
- V · Voice Chat
- No
- W · Weights
- Downloadable
- X · X Handle
- [UNKNOWN]
- Y · Year Founded
- [UNKNOWN]
- Z · Bottom Line
- Open-weights LLM from JHU, released 2025.
Data completeness 85% · Last verified 2026-06-11 · Primary source ↗
Cite this
“mmBERT.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/jhu-mmbert.html