Kosmos-2 TPS calculator

Open weights Microsoft 1.6B parameters June 2023

Each card below is assessed against this model at the context length and minimum quality you choose. Speed is an estimate for a single request, calculated from the card's memory bandwidth and the size of the model once compressed.

Calculated for this model

818 cards that can run it

818 cards we hold specifications for

Smallest card that fits

Tesla C1080

4 GB · Q8_0 · 23.0 tok/s

Fastest card

B200

2,118 tok/s · 180 GB

Which GPUs can run Kosmos-2?

Set the inputs, read the answer

Context length tokens

A longer conversation needs more memory, which can push this model off smaller cards.

Minimum quality

Hides cards that would only fit the model by compressing it below this point.

Search cards

Card memory

Also show cards that cannot run it

818 cards match

Calculating

					Needs	Quantisation	Fit
2,118 tok/s 1,271–3,388 · low confidence	B200 NVIDIA	180 GB	8,000 GB/s	Jan 2024	2.4 GB	Q8_0	Comfortable
2,118 tok/s 1,271–3,388 · low confidence	B300 NVIDIA	288 GB	8,000 GB/s	Sep 2025	2.4 GB	Q8_0	Comfortable
1,691 tok/s 1,015–2,706 · low confidence	Radeon Instinct MI350X AMD	288 GB	8,190 GB/s	Jan 2025	2.4 GB	Q8_0	Comfortable
1,691 tok/s 1,015–2,706 · low confidence	Radeon Instinct MI355X AMD	288 GB	8,190 GB/s	Jan 2025	2.4 GB	Q8_0	Comfortable
1,352 tok/s 811–2,164 · low confidence	Radeon Instinct MI300 AMD	128 GB	6,550 GB/s	Jan 2023	2.4 GB	Q8_0	Comfortable
1,294 tok/s 777–2,071 · low confidence	H200 NVL NVIDIA	141 GB	4,890 GB/s	Nov 2024	2.4 GB	Q8_0	Comfortable
1,294 tok/s 777–2,071 · low confidence	H200 SXM 141 GB NVIDIA	141 GB	4,890 GB/s	Nov 2024	2.4 GB	Q8_0	Comfortable
1,239 tok/s 743–1,982 · low confidence	Radeon Instinct MI325X AMD	256 GB	6,000 GB/s	Oct 2024	2.4 GB	Q8_0	Comfortable
1,099 tok/s 660–1,759 · low confidence	Radeon Instinct MI300A AMD	128 GB	5,325 GB/s	Dec 2023	2.4 GB	Q8_0	Comfortable
1,099 tok/s 660–1,759 · low confidence	Radeon Instinct MI300X AMD	192 GB	5,325 GB/s	Dec 2023	2.4 GB	Q8_0	Comfortable
1,099 tok/s 660–1,759 · low confidence	Radeon Instinct MI308X AMD	192 GB	5,325 GB/s	Dec 2023	2.4 GB	Q8_0	Comfortable
1,043 tok/s 626–1,669 · low confidence	H100 NVL 94 GB NVIDIA	94 GB	3,940 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable
889 tok/s 534–1,423 · low confidence	H100 PCIe 96 GB NVIDIA	96 GB	3,360 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable
889 tok/s 534–1,423 · low confidence	H100 SXM5 80 GB NVIDIA	80 GB	3,360 GB/s	Oct 2022	2.4 GB	Q8_0	Comfortable
889 tok/s 534–1,423 · low confidence	H100 SXM5 94 GB NVIDIA	94 GB	3,360 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable
889 tok/s 534–1,423 · low confidence	H100 SXM5 96 GB NVIDIA	96 GB	3,360 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable
889 tok/s 534–1,423 · low confidence	H800 SXM5 NVIDIA	80 GB	3,360 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable
677 tok/s 406–1,084 · low confidence	Radeon Instinct MI250 AMD	128 GB	3,280 GB/s	Nov 2021	2.4 GB	Q8_0	Comfortable
677 tok/s 406–1,084 · low confidence	Radeon Instinct MI250X AMD	128 GB	3,280 GB/s	Nov 2021	2.4 GB	Q8_0	Comfortable
564 tok/s 339–903 · low confidence	Data Center GPU Max 1550 Intel	128 GB	3,280 GB/s	Jan 2023	2.4 GB	Q8_0	Comfortable
552 tok/s 331–884 · low confidence	Data Center GPU Max Subsystem Intel	128 GB	3,210 GB/s	Jan 2023	2.4 GB	Q8_0	Comfortable
540 tok/s 324–864 · low confidence	A100 SXM4 80 GB NVIDIA	80 GB	2,040 GB/s	Nov 2020	2.4 GB	Q8_0	Comfortable
540 tok/s 324–864 · low confidence	A100X NVIDIA	80 GB	2,040 GB/s	Jun 2021	2.4 GB	Q8_0	Comfortable
540 tok/s 324–864 · low confidence	A800 SXM4 80 GB NVIDIA	80 GB	2,040 GB/s	Aug 2022	2.4 GB	Q8_0	Comfortable
540 tok/s 324–864 · low confidence	H100 CNX NVIDIA	80 GB	2,040 GB/s	Mar 2023	2.4 GB	Q8_0	Comfortable

Speeds are estimates for a single request — one conversation at a time — calculated from memory bandwidth, model size and quantisation. Real throughput varies with the inference runtime and its version. Figures published by hardware vendors measure many simultaneous requests and are much higher.

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: 26 June 2023
Authors: Zhiliang Peng, Wenhui Wang, Li Dong, Yaru Hao, Shaohan Huang, Shuming Ma, Furu Wei

What it does

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

Domain: Language, Vision, Multimodal
Task: Visual question answering, Image captioning, Named entity recognition (NER), Character recognition (OCR), Document representation
Approach: Self-supervised learning

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: 1.6B
Training data: 25,000,000,000 tokens

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: 4.6 × 10²⁰ FLOP
How it was established: Operation counting,Hardware

The training run

What it physically took to train: which chips, how many, for how long, and what that drew from the wall.

Training hardware: NVIDIA V100
Chips used: 256
Chip-hours: 6,144
Wall-clock time: 24 hours
Power draw: 152.8 kW

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: Open — downloadable
Model access: Open weights (unrestricted)
Training code: Open source
Hugging Face: microsoft

How it is classified

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

Record confidence: Likely
Citations: 1,180

Sources

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

Reference: Kosmos-2: Grounding Multimodal Large Language Models to the World
Last updated: 25 May 2026

The extremes

The ten fastest GPUs that run Kosmos-2

Ranked by estimated tokens per second, newest card first where speeds tie. Because generation is bound by memory bandwidth, this ordering follows bandwidth rather than any gaming benchmark.

The smallest GPUs that still run Kosmos-2

The cheapest route in, by memory capacity. A tight fit runs the model but leaves nothing spare for a longer conversation.

What the numbers mean

Hardware requirements in practice

Minimum card

Tesla C1080

Memory needed

2.4 GB

Fastest

2,118 tok/s

Kosmos-2 is small enough at 1.6B parameters that hardware is rarely the obstacle — 818 of the cards we track can run it, including cards several years old.

The entry point is the Tesla C1080: 4 GB of memory, Q8_0 compression, roughly 23.0 tokens per second.

At the other end, a B200 generates roughly 2,118 tokens per second on it, on the strength of 8,000 GB/s of memory bandwidth.

Background

Kosmos-2 was published by Microsoft, in United States of America, in June 2023. industry is the category the publisher falls under.

It works in Language, Vision, Multimodal, and is recorded as doing visual question answering, Image captioning, Named entity recognition (NER), Character recognition (OCR), Document representation.

Published weights mean the model runs on your machine rather than someone else's, which is what makes the hardware question below answerable at all. It is published under the microsoft organisation on Hugging Face.

Reading the throughput figures

Across every card that can run it, the middle of the range is about 59.5 tokens per second, and 794 of them clear the ten tokens per second that roughly matches reading speed.

Every weight participates in every token here, so bandwidth is the whole story: the ranking below is effectively a ranking of memory throughput.

Its internal architecture is not on file, so memory is approximated from the parameter count and marked accordingly. Expect the real figure to differ, more so at long context.

How it was trained

The training run consumed about 4.6 × 10²⁰ FLOP, on NVIDIA V100. That figure describes the cost of creating it and has no bearing on how quickly it generates text.

Around 25,000,000,000 tokens went into training it.

Step by step

How to choose a GPU for Kosmos-2

The table above has already assessed every card we hold specifications for against this model. Getting to your answer takes six steps.

01

Read the memory figure first

Every card here has been checked against Kosmos-2 — around 2.4 GB at Q8_0. Capacity is the gate — a card either holds it or it does not.
02

Decide how long your conversations run

Longer conversations cost memory on top of what the weights need. Move the slider to your real working length before trusting any row for Kosmos-2.
03

Set a quality floor

Each card runs the least-compressed copy it can hold — Q8_0 on the smallest card that fits. Setting a floor drops the cards that only manage Kosmos-2 by squeezing it further than you would want.
04

Compare tokens per second, not specifications

The speed ordering for Kosmos-2 is effectively an ordering by memory bandwidth, which is why the B200 tops it at 2,118 tok/s.
05

Look at the headroom, not just the fit

A tight fit runs Kosmos-2 but leaves nothing spare for a longer conversation; comfortable has headroom. If you expect to grow the context, buy for comfortable.
06

See what else that card runs

Each card page repeats this sweep for every model we hold. It answers what else the hardware is good for, beyond Kosmos-2.

Answers

Kosmos-2 — common questions

Where can I download Kosmos-2?

Its weights are published under the microsoft organisation on Hugging Face. We do not host model files — this site calculates what hardware is needed to run them.

How much compute was used to train Kosmos-2?

Around 4.6 × 10²⁰ FLOP, on NVIDIA V100. 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.

Can I run Kosmos-2 if it does not fit in my GPU?

It can be split between the card and system memory, but Kosmos-2 generates painfully slowly that way. Nothing on this page assumes offloading.

Would two GPUs run Kosmos-2 faster?

Capacity adds across cards; throughput does not. Since 818 of the cards we track already hold Kosmos-2 on their own, a second card is rarely the answer here.

Why does the quantisation differ between cards for Kosmos-2?

Because capacity varies, so does how hard Kosmos-2 has to be squeezed — 1 distinct levels appear in the table above. Set a minimum quality to compare at one.

How accurate are these Kosmos-2 speed estimates?

Every figure is derived from memory bandwidth and model size, not benchmarked. That is why each is published as a range such as 1,271–3,388 tok/s on the B200 rather than a single number.

What GPU do I need to run Kosmos-2?

The smallest card in our catalogue that holds Kosmos-2 is the Tesla C1080, with 4 GB of memory. It runs the model at Q8_0 using about 2.4 GB, and produces roughly 23.0 tokens per second. 818 cards in total can run it.

How fast is Kosmos-2 on a GPU?

It depends on the card. The quickest we calculate is a B200 at about 2,118 tokens per second; the slowest that still runs it manages considerably less. Reading speed is around ten tokens per second, and 794 of the cards that can run Kosmos-2 clear that.

How much VRAM does Kosmos-2 need?

About 2.4 GB at Q8_0 compression, which is what the smallest card that runs it uses. Less compression needs more: the figures in the memory column above are recalculated for each card, because each one holds the least-compressed version it can.

Can I run Kosmos-2 on a 8 GB GPU?

Yes. A CMP 170HX 8 GB with 8 GB runs it at Q8_0, using about 2.4 GB and generating roughly 394 tokens per second — a comfortable fit.

Can I run Kosmos-2 on a 12 GB GPU?

Yes. A GeForce RTX 3080 Ti with 12 GB runs it at Q8_0, using about 2.4 GB and generating roughly 242 tokens per second — a comfortable fit.

Can I run Kosmos-2 on a 16 GB GPU?

Yes. A Tesla V100 SXM2 16 GB with 16 GB runs it at Q8_0, using about 2.4 GB and generating roughly 299 tokens per second — a comfortable fit.

Can I run Kosmos-2 on a 24 GB GPU?

Yes. A GeForce RTX 5090 D V2 with 24 GB runs it at Q8_0, using about 2.4 GB and generating roughly 355 tokens per second — a comfortable fit.

Is Kosmos-2 open source?

Its weights are published, so Kosmos-2 can be downloaded and run on your own hardware. Note that open weights is not the same as open source in the full sense — it says nothing about the training data, the training code, or the commercial terms attached.

How many parameters does Kosmos-2 have?

Kosmos-2 has 1.6B parameters. 1.6B. 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.

Who created Kosmos-2?

Kosmos-2 was published by Microsoft, based in United States of America, categorised as industry.

When was Kosmos-2 released?

Kosmos-2 was published in June 2023. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

What is Kosmos-2 used for?

Kosmos-2 works in Language, Vision, Multimodal, and is recorded as handling visual question answering, Image captioning, Named entity recognition (NER), Character recognition (OCR), Document representation. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

Source

Original publication

Record last updated 25 May 2026

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