U2-RadiMed

Find lesions, aid Dx — imaging you can trust

Lesion detect, Dx aid & report gen for imaging

U2-RadiMed

U2-RadiMed: Find lesions, aid Dx, write reports — imaging you can trust

U2-RadiMed is Unisound's medical imaging LLM for image+text input. It helps doctors read scans, locate lesions, aid Dx, and auto-generate structured reports — an end-to-end AI assistant from image analysis to clinical decision support.

Eval

Eval covers perception (lesion detect/locate) to high-level reasoning (clinical decision & advanced medical reasoning). 18 sub-tasks span CXR / CT / MRI. U2-RadiMed ranks #1 at 55.47% overall acc., the only model above 50%.

U2-RadiMed Others

Overall accuracy (%)

55.47
U2-RadiMed
48
Gemini-3.1-pro
48
GPT-5.4
44
Hulu-Med-Flash-Preview-27B
42
Qwen3.6-27B
41
Intern-S1
37
Lingshu-32B
33
Citrus-V-8B-v1.0
29
medgemma-27b-it

Key strengths

Full imaging workflow

From scan reading, lesion locate, Dx aid to structured report gen — one-stop coverage of key radiology steps.

Multimodal & multi-image understanding

Supports single/multi-image + text input. Strong at multi-sequence and temporal comparison for follow-up and complex cases.

Lesion-level visual locate

Not just a conclusion — it locates abnormalities so doctors can lock on lesions faster and reduce misses.

Clinical reasoning & decision support

Combines imaging with medical knowledge for differential Dx, treatment eval, and medical Q&A.

Medical-grade safety

AI suggestion + doctor confirm, plus result checks, keep outputs trustworthy with clear responsibility.

Tech highlights

Multimodal input

Image (base64 / URL) + text instruction; single and multi-image input.

Long-context understanding

40,960-token context window for multi-image inputs and long instructions.

Structured output

Text output with bbox, Dx notes, and structured reports; supports locate results for visualization.

Use cases

Imaging report assist

Auto-draft structured reports with findings and impressions; doctors review and edit to cut paperwork.

Screening & lesion locate

Auto-marks suspected regions to help doctors lock on faster, cut misses, and shorten read time.

Follow-up & disease tracking

Compares pre/post-treatment and multi-sequence/temporal scans to track lesion change and treatment effect.

Difficult-case differential Dx

Combines imaging features with medical knowledge to list support/exclude evidence and probability for complex cases.

Capabilities

  • Lesion detect & locate

    Detect abnormal lesions and output location (bbox); supports single-image and multi-image sequences.

  • Clinical reasoning

    Reason over imaging + medical knowledge for disease tracking, multimodal differential Dx, and multimodal reports.

  • Clinical decision

    Decision support on top of image understanding: sequence reading, multimodal treatment suggestions, and visual Q&A.

  • Report gen

    Auto-generate diagnostic report text from images, including structured CXR and other imaging reports.

Flexible pricing, custom solutions, private deployment

Flexible billing models and dedicated customization for medical imaging scenarios, with private deployment to ensure data security and compliance

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