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MedGemma 4B IT vs Phi-3.5-vision-instruct

MedGemma 4B IT and Phi-3.5-vision-instruct are closely matched at -4.5 and -3.3 on the LLM Stats Score.

Google · Microsoft · Updated for 2026

Which is better?

MedGemma 4B IT and Phi-3.5-vision-instruct are closely matched on the overall LLM Stats Score at -4.5 and -3.3.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose MedGemma 4B IT

  • you want the most recent training data — it shipped May 2025

Choose Phi-3.5-vision-instruct

  • you are already invested in the Microsoft ecosystem

At a glance

The differences that matter most.

MedGemma 4B IT
Google
Phi-3.5-vision-instruct
Microsoft
Core performance indexes
LLM Stats Score
-4.5
#347
-3.3
#342
Reasoning
-5.0
#344
-4.8
#342
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
MedGemma 4B IT
Phi-3.5-vision-instruct
Vision
-6.8#201
-3.6#193
Multimodal
-5.4#162
-1.1#155
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

7 reported for MedGemma 4B IT · 9 for Phi-3.5-vision-instruct

No common benchmarks found

MedGemma 4B IT and Phi-3.5-vision-instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

100.0M diff

MedGemma 4B IT has 0.1B more parameters than Phi-3.5-vision-instruct, making it 2.4% larger.

Google
MedGemma 4B IT
4.3Bparameters
Microsoft
Phi-3.5-vision-instruct
4.2Bparameters
4.3B
MedGemma 4B IT
4.2B
Phi-3.5-vision-instruct

Input capabilities

Documented input modalities across available providers

Both MedGemma 4B IT and Phi-3.5-vision-instruct support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

MedGemma 4B IT

Text
Images
Audio
Video

Phi-3.5-vision-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

MedGemma 4B IT is licensed under Health AI Developer Foundations terms of use, while Phi-3.5-vision-instruct uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

MedGemma 4B IT

Health AI Developer Foundations terms of use

Open weights

Phi-3.5-vision-instruct

MIT

Open weights

Release Timeline

When each model was launched

MedGemma 4B IT was released on 2025-05-20, while Phi-3.5-vision-instruct was released on 2024-08-23.

MedGemma 4B IT is 9 months newer than Phi-3.5-vision-instruct.

MedGemma 4B IT

May 20, 2025

1.3 years ago

9mo newer
Phi-3.5-vision-instruct

Aug 23, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against MedGemma 4B IT and Phi-3.5-vision-instruct side-by-side, then vote on the output you prefer.

MedGemma 4B IT
✓ Preferred
Phi-3.5-vision-instruct
Open in Playground

FAQ

Common questions about MedGemma 4B IT vs Phi-3.5-vision-instruct.

Which is better, MedGemma 4B IT or Phi-3.5-vision-instruct?

MedGemma 4B IT and Phi-3.5-vision-instruct are closely matched on the LLM Stats Score at -4.5 and -3.3. MedGemma 4B IT is made by Google and Phi-3.5-vision-instruct is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MedGemma 4B IT compare to Phi-3.5-vision-instruct in benchmarks?

MedGemma 4B IT scores MIMIC CXR: 88.9%, DermMCQA: 71.8%, PathMCQA: 69.8%, SlakeVQA: 62.3%, VQA-Rad: 49.9%. Phi-3.5-vision-instruct scores ScienceQA: 91.3%, POPE: 86.1%, MMBench: 81.9%, ChartQA: 81.8%, AI2D: 78.1%.

What are the main differences between MedGemma 4B IT and Phi-3.5-vision-instruct?

Key differences include LLM Stats Score (-4.5 vs -3.3), licensing (Health AI Developer Foundations terms of use vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes MedGemma 4B IT and Phi-3.5-vision-instruct?

MedGemma 4B IT is developed by Google and Phi-3.5-vision-instruct is developed by Microsoft.

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