What are the hardware requirements for Sailor2 1B?

Sailor2 1B requires approximately 2 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 Sailor2 1B and how large is it?

Sailor2 1B is developed by sail, a model with 1b 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 Sailor2 1B?

Sailor2 1B is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Sailor2 1B by sail — VRAM 2GB, 4K context

Name: Sailor2 1B
Author: sail

Sailor2 1B is an open-source language model by sail. Features: 1b LLM, VRAM: 2GB, Context: 4K, License: apache-2.0, LLM Explorer Score: 0.16.

Arxiv:2502.12982 Base model:finetune:qwen/qwen2... Base model:qwen/qwen2.5-0.5b Conversational En Endpoints compatible Id Jv Km Lo Ms Multilingual My Qwen2 Region:us Safetensors Sailor Sea Su Th Tl Vi Zh

Model Card on HF 🤗: https://huggingface.co/sail/Sailor2-1B

Sailor2 1B Parameters and Internals

LLM Name	Sailor2 1B
Repository 🤗	https://huggingface.co/sail/Sailor2-1B
Base Model(s)	Qwen/Qwen2.5-0.5B Qwen/Qwen2.5-0.5B
Model Size	1b
Required VRAM	2 GB
Updated	2026-07-12
Maintainer	sail
Model Type	qwen2
Model Files	2.0 GB
Supported Languages	en zh id th vi ms lo my jv km su tl
Model Architecture	Qwen2ForCausalLM
License	apache-2.0
Context Length	4096
Model Max Length	4096
Transformers Version	4.46.3
Tokenizer Class	Qwen2Tokenizer
Padding Token	<\|endoftext\|>
Vocabulary Size	151936
Torch Data Type	bfloat16
Errors	replace

Rank the Sailor2 1B capabilities

Have you tried this model? Rate its performance — this feedback helps the ML community find the right model for their needs.

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 Sailor2 1B

Best Alternatives	Context / RAM	Downloads
MiniCPM5 1B Qwenified	128K / 4.3 GB	208
QwenStock 1.7B	128K / 3.5 GB	6
QwenModelStock 1.8B	128K / 7.1 GB	5
ECE PRYMMAL YL 1B SLERP V1	128K / 6.2 GB	6
ECE PRYMMAL YL 1B SLERP V2	128K / 6.2 GB	5
ECE PRYMMAL YL 1B SLERP V3	128K / 6.2 GB	7
ECE PRYMMAL YL 1B SLERP V4	128K / 6.2 GB	7
ECE PRYMMAL YL 1B SLERP V5	128K / 6.2 GB	7
Qwen 1B Continued V2.1	128K / 2.5 GB	10
Qwen 1B Continued	128K / 2.5 GB	39

Note: green Score (e.g. "73.2") means that the model is better than sail/Sailor2-1B.