Florence-2-B (base)

Closed weights Microsoft 232M parameters July 2024

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
Microsoft
Organisation type
Industry
Country
United States of America
Published
29 July 2024
Authors
Bin Xiao, Haiping Wu, Weijian Xu, Xiyang Dai, Houdong Hu, Yumao Lu, Michael Zeng, Ce Liu, Lu Yuan

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Vision
Task
Image captioning, Visual question answering, Image classification, Object detection

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Parameters
232M

232 million

Training data
22,879,290,000 tokens

We train our models with a mini-batch size of 2048/3072 (base/large) and an image size of 384×384 until reaching 3 billion effective training samples. Similar to [15, 29, 64, 92, 95], we further conduct high-resolution tuning with an image size of 768×768 for 0.5 billion samples for the base model and 0.1 billion samples for the large model. assuming (!) patches 14*14 and avg of 40 text tokens per image: 3*10^9*((384/14)^2+40) + 0.5*10^9*((768/14)^2+40) = 3.9016327e+12 tokens (Likely confid…

Training compute

The arithmetic performed to train the model, measured in floating-point operations. It is a measure of what the training run cost, not of how fast the finished model answers you.

Training compute
5.4 × 10²¹ FLOP

6ND = 6*232000000.00*3901632700000 = 5.4310727e+21

How it was established
Operation counting

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
Unreleased
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Likely

Sources

Where this record came from and when it was last checked.

Reference
Florence-2: Advancing a Unified Representation for a Variety of Vision Tasks
Last updated
11 February 2026

What the numbers mean

What this model is

Florence-2-B (base) was published by Microsoft, in United States of America, in July 2024. It comes out of industry.

It works in Vision, and is recorded as doing image captioning, Visual question answering, Image classification, Object detection.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Training and provenance

Producing it required around 5.4 × 10²¹ FLOP of arithmetic, which is a statement about the training budget rather than about inference.

Around 22,879,290,000 tokens went into training it.

Answers

Florence-2-B (base) — common questions

01

What GPU do I need to run Florence-2-B (base)?

None. Florence-2-B (base) is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

02

Is Florence-2-B (base) open source?

No. Florence-2-B (base) has not had its weights published, so it exists only as a service controlled by its owner.

03

How many parameters does Florence-2-B (base) have?

Florence-2-B (base) has 232M parameters. 232 million. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

04

Who created Florence-2-B (base)?

Florence-2-B (base) was published by Microsoft, based in United States of America, categorised as industry.

05

When was Florence-2-B (base) released?

Florence-2-B (base) was published in July 2024. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

06

What is Florence-2-B (base) used for?

Florence-2-B (base) works in Vision, and is recorded as handling image captioning, Visual question answering, Image classification, Object detection. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

07

How much compute was used to train Florence-2-B (base)?

Around 5.4 × 10²¹ FLOP. That measures what producing the model cost and says nothing about how quickly it answers once trained — inference speed comes from memory bandwidth, not from the training budget.

Source

Original publication

Record last updated 11 February 2026

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