Project AURIONAI Use-Cases Research & Innovation
multimodal LLM

MAIRA-2

7B model that generates grounded chest X-ray findings; Microsoft reported state of the art on MIMIC-CXR findings generation in June 2024. Research use only.

Microsoft AIMicrosoft AIUSA
Microsoft AI
Levelmodel
Classmultimodal LLM
Parameters7B
Contextnot in the notes
ReleasedJun 2024
Opennessopen weights restricted
Runs onnot in the notes
Statusnot in the notes

Lineage

finetune
Vicuna-7B-v1.5 to MAIRA-2: finetune, high confidenceVicuna-7B-v1.5Vicuna-7B-v1.5LMSYSMAIRA-2MAIRA-2Microsoft AI, Jun 2024
LMSYSVicuna-7B-v1.5 is the parent (finetune)high confidencemodel card
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 2 models. Confidence and evidence are the notes' own.

Industry Use Cases

Healthcare
Radiology report generation

R&D Topics

Domain adaptation (vertical models)produced byMedical vision-language modelsexemplar

Identity

Developer
Microsoft AI
Family
not in the notes
Released
Jun 2024 sourcesnotes
Weights published
–
Record checked
10 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
not in the notes Frozen image encoder RAD-DINO-MAIRA-2 plus language model Vicuna-7B-v1.5
Total parameters
7B sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
image, 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 restricted
Licence
Microsoft Research License Agreement (MSRLA) sources
Access routes
open weights download, research only
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.

Sources

  1. huggingface.co/microsoft/maira-2 https://huggingface.co/microsoft/maira-2
  2. MAIRA-2: Grounded Radiology Report Generation - Microsoft Research microsoft.com https://www.microsoft.com/en-us/research/publication/maira-2-grounded-radiology-report-generation/

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "MAIRA-2", https://aurion.semai.id/models/microsoft-maira-2/, records of October 2026.