Who developed Llama 2 7B and how large is it?

Llama 2 7B is developed by meta-llama, a model with 7b 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 Llama 2 7B?

Llama 2 7B is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Llama 2 7B by meta-llama

Name: Llama 2 7B
Author: meta-llama

Llama 2 7B is an open-source language model by meta-llama. Features: 7b LLM, License: llama2, LLM Explorer Score: 0.14.

Arxiv:2307.09288 En Facebook Llama Llama2 Meta Pytorch Region:us

Model Card on HF 🤗: https://huggingface.co/meta-llama/Llama-2-7b

Llama 2 7B Parameters and Internals

Model Type

Text Generation

Use Cases

Areas:

Commercial, Research

Limitations:

Use in languages other than English, Use violating laws or the Acceptable Use Policy

Considerations:

Developers should follow the Responsible Use Guide.

Additional Notes

Future versions will be released with improvements based on community feedback.

Supported Languages

English (High Proficiency), Other Languages (Not supported)

Training Details

Data Sources:

Publicly available online data

Data Volume:

2 trillion tokens

Methodology:

Pretrained and fine-tuned using SFT and RLHF

Context Length:

4000

Hardware Used:

A100-80GB GPUs

Model Architecture:

Transformer

Safety Evaluation

Methodologies:

Evaluation on safety datasets like TruthfulQA and Toxigen

Findings:

The model carries risks of producing inaccurate or biased outputs.

Risk Categories:

Inaccurate Responses, Biased Outputs, Objectionable Responses

Ethical Considerations:

Developers should perform tailored safety testing before deployment.

Input Output

Input Format:

Text

Accepted Modalities:

Text

Output Format:

Text

Performance Tips:

Specific formatting needed for expected features, including INST and <> tags.

LLM Name	Llama 2 7B
Repository 🤗	https://huggingface.co/meta-llama/Llama-2-7b
Model Size	7b
Updated	2026-08-03
Maintainer	meta-llama
Supported Languages	en
Model Architecture	MambaSSM
License	llama2
Vocabulary Size	-1

Rank the Llama 2 7B 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 Llama 2 7B

Best Alternatives	Context / RAM	Downloads	Likes
Mistral 7B Instruct V0.3	32K / 14.5 GB	5676238	2725
Mistral 7B V0.3	32K / 14.5 GB	175628	588
Llama 2 7B Chat	0K / GB	50	623
Mosslight 7B	0K / 14.5 GB	116	1
Mistral 7B Instruct V0.3	0K / 14.5 GB	6	0
Mathstral 7B V0.1	0K / 29 GB	4802	243

Note: green Score (e.g. "73.2") means that the model is better than meta-llama/Llama-2-7b.