What are the hardware requirements for Kosmos 2.5 Chat?

Kosmos 2.5 Chat requires approximately 5.5 GB of VRAM. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Kosmos 2.5 Chat and how large is it?

Kosmos 2.5 Chat is developed by microsoft, a model with 1.4b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate Kosmos 2.5 Chat?

Kosmos 2.5 Chat is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Kosmos 2.5 Chat by microsoft — VRAM 5.5GB

Name: Kosmos 2.5 Chat
Author: microsoft

Kosmos 2.5 Chat is an open-source language model by microsoft. Features: 1.4b LLM, VRAM: 5.5GB, License: mit, LLM Explorer Score: 0.14.

Arxiv:2309.11419 En Endpoints compatible Image-text-to-text Kosmos-2.5 Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/microsoft/kosmos-2.5-chat

Kosmos 2.5 Chat Parameters and Internals

LLM Name	Kosmos 2.5 Chat
Repository 🤗	https://huggingface.co/microsoft/kosmos-2.5-chat
Model Size	1.4b
Required VRAM	5.5 GB
Updated	2026-08-09
Maintainer	microsoft
Model Type	kosmos-2.5
Model Files	5.0 GB: 1-of-2 0.5 GB: 2-of-2
Supported Languages	en
Model Architecture	Kosmos2_5ForConditionalGeneration
License	mit
Model Max Length	4096
Transformers Version	4.43.3
Tokenizer Class	PreTrainedTokenizer
Padding Token	<pad>
Torch Data Type	float32

Rank the Kosmos 2.5 Chat capabilities

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Instruction Following and Task Automation
Factuality and Completeness of Knowledge
Censorship and Alignment
Data Analysis and Insight Generation
Text Generation
Text Summarization and Feature Extraction
Code Generation
Multi-Language Support and Translation

Best Alternatives to Kosmos 2.5 Chat

Best Alternatives	Context / RAM	Downloads	Likes
Kosmos 2.5	0K / 5.5 GB	13221	271

Note: green Score (e.g. "73.2") means that the model is better than microsoft/kosmos-2.5-chat.