CONVERSATIONAL AI
NLP
Llama 2: Open Foundation and Fine-Tuned Chat Models
July 18, 2023
Abstract
In this work, we develop and release Llama 2, a collection of pretrained and fine-tuned large language models (LLMs) ranging in scale from 7 billion to 70 billion parameters. Our fine-tuned LLMs, called Llama 2-Chat, are optimized for dialogue use cases. Our models outperform open-source chat models on most benchmarks we tested, and based on our human evaluations for helpfulness and safety, may be a suitable substitute for closedsource models. We provide a detailed description of our approach to fine-tuning and safety improvements of Llama 2-Chat in order to enable the community to build on our work and contribute to the responsible development of LLMs.
AUTHORS
Written by
Louis Martin
Kevin Stone
Peter Albert
Amjad Almahairi
Yasmine Babaei
Nikolay Bashlykov
Soumya Batra
Praj Bhargava
Dan Bikel
Lukas Blecher
Moya Chen
Guillem Cucurull
David Esiobu
Jude Fernandes
Jeremy Fu
Wenyin Fu
Brian Fuller
Cynthia Gao
Vedanuj Goswami
Naman Goyal
Anthony Hartshorn
Saghar Hosseini
Rui Hou
Hakan Inan
Marcin Kardas
Viktor Kerkez
Isabel Kloumann
Artem Korenev
Punit Singh Koura
Marie-Anne Lachaux
Thibaut Lavril
Jenya Lee
Diana Liskovich
Yinghai Lu
Xavier Martinet
Todor Mihaylov
Igor Molybog
Yixin Nie
Andrew Poulton
Jeremy Reizenstein
Rashi Rungta
Kalyan Saladi
Alan Schelten
Ruan Silva
Ranjan Subramanian
Xiaoqing Ellen Tan
Binh Tang
Ross Taylor
Andrew Kuan
Puxin Xu
Zheng Yan
Iliyan Zarov
Yuchen Zhang
Melanie Kambadur
Sharan Narang
Aurelien Rodriguez
Robert Stojnic
Thomas Scialom
Publisher
arxiv
Related Publications
April 14, 2024
SPEECH & AUDIO
NLP
CoLLD: Contrastive Layer-to-Layer Distillation for Compressing Multilingual Pre-Trained Speech Encoders
Heng-Jui Chang, Ning Dong (AI), Ruslan Mavlyutov, Sravya Popuri, Andy Chung
April 14, 2024
February 21, 2024
INTEGRITY
NLP
Watermarking Makes Language Models Radioactive
Tom Sander, Pierre Fernandez, Alain Durmus, Matthijs Douze, Teddy Furon
February 21, 2024
December 07, 2023
CONVERSATIONAL AI
NLP
Llama Guard: LLM-based Input-Output Safeguard for Human-AI Conversations
Hakan Inan, Kartikeya Upasani, Jianfeng Chi, Rashi Rungta, Krithika Iyer, Yuning Mao, Davide Testuggine, Madian Khabsa
December 07, 2023
December 06, 2023
NLP
Polar Ducks and Where to Find Them: Enhancing Entity Linking with Duck Typing and Polar Box Embeddings
Mattia Atzeni, Mike Plekhanov, Frederic Dreyer, Nora Kassner, Simone Merello, Louis Martin, Nicola Cancedda
December 06, 2023
Help Us Pioneer The Future of AI
We share our open source frameworks, tools, libraries, and models for everything from research exploration to large-scale production deployment.
Product experiences
Foundational models
Product experiences
Latest news
Foundational models
Meta © 2024