What are the hardware requirements for Longchat 7B V1.5 32K?

Longchat 7B V1.5 32K requires approximately 13.5 GB of VRAM and supports a context window of 4K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Longchat 7B V1.5 32K and how large is it?

Longchat 7B V1.5 32K is developed by lmsys, a model with 7b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

How does Longchat 7B V1.5 32K perform on standard benchmarks?

Longchat 7B V1.5 32K has the following published scores: MMLU 43.16. Compare against reference models on this page or on the LLM Explorer leaderboards.

Longchat 7B V1.5 32K by lmsys — VRAM 13.5GB, 4K context

Name: Longchat 7B V1.5 32K
Author: lmsys

Longchat 7B V1.5 32K is an open-source language model by lmsys. Features: 7b LLM, VRAM: 13.5GB, Context: 4K, License: apache-2.0, LLM Explorer Score: 0.13, Arc: 51.7, HellaSwag: 75, MMLU: 43.2, GSM8K: 4.8.

Endpoints compatible Llama Pytorch Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/lmsys/longchat-7b-v1.5-32k

Longchat 7B V1.5 32K Parameters and Internals

LLM Name	Longchat 7B V1.5 32K
Repository 🤗	https://huggingface.co/lmsys/longchat-7b-v1.5-32k
Model Size	7b
Required VRAM	13.5 GB
Updated	2026-08-06
Maintainer	lmsys
Model Type	llama
Model Files	10.0 GB: 1-of-2 3.5 GB: 2-of-2 10.0 GB: 1-of-2 3.5 GB: 2-of-2
Model Architecture	LlamaForCausalLM
License	apache-2.0
Context Length	4096
Model Max Length	4096
Transformers Version	4.28.0
Tokenizer Class	LlamaTokenizer
Beginning of Sentence Token	<s>
End of Sentence Token	</s>
Unk Token	<unk>
Vocabulary Size	32000
Torch Data Type	float16

Rank the Longchat 7B V1.5 32K 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

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A2.4	1024K / 16.1 GB	12
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Note: green Score (e.g. "73.2") means that the model is better than lmsys/longchat-7b-v1.5-32k.