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Llama 2 7b Chat Hf

Developed by meta-llama
Llama 2 is a series of generative text models open-sourced by Meta, including pre-trained and dialogue fine-tuned versions ranging from 7 billion to 70 billion parameters. This model is the 7 billion parameter dialogue-optimized version, fine-tuned with reinforcement learning for dialogue scenarios.
Downloads 1.2M
Release Time : 7/13/2023

Model Overview

A large language model based on the autoregressive Transformer architecture, aligned with human preferences through supervised fine-tuning and reinforcement learning from human feedback, suitable for English dialogue scenarios.

Model Features

Human preference alignment
Optimized dialogue quality through supervised fine-tuning (SFT) and reinforcement learning from human feedback (RLHF)
Enhanced safety
Achieved 64.14 on the TruthfulQA benchmark, with only 0.01 toxicity detection in Toxigen
Efficient inference
The 70B parameter version employs Grouped Query Attention (GQA) technology to improve inference speed

Model Capabilities

Multi-turn dialogue generation
Instruction following
Common-sense reasoning
Text completion

Use Cases

Intelligent assistants
Customer service dialogue systems
Handles user inquiries and provides structured responses
In human evaluations, safety and utility are comparable to ChatGPT
Educational applications
English learning companion
Generates dialogue content suitable for language learning scenarios
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