Sapling Logo

FastChat vs. Llama 2

LLM Comparison


FastChat

FastChat

Overview

FastChat is the open platform for training, serving, and evaluating LLM chatbots developed and maintained by LMSYS.


FastChat is an open-source library for training, serving, and evaluating LLM chat systems from LMSYS. It includes training and evaluation code, a model serving system, a Web GUI, and a finetuning pipeline, and is the de facto system for Vicuna as well as FastChat-T5. FastChat also includes the Chatbot Arena for benchmarking LLMs.


Initial release: 2023-04-28

Llama 2

Llama 2

Overview

Llama 2 is Meta AI's open source LLM available for both research and commercial use cases (assuming you're not one of the top consumer companies in the world).


The successor to LLaMA (henceforce "Llama 1"), Llama 2 was trained on 40% more data, has double the context length, and was tuned on a large dataset of human preferences (over 1 million such annotations) to ensure helpfulness and safety. It outperforms other open source models on both natural language understanding datasets as well as in head-to-head face-offs.


Initial release: 2023-07-18

Looking for an LLM API/SDK that works out of the box? No prompts or ad hoc guardrails.

Sapling API
More Comparisons

FastChat

Llama 2
Products & Features
Instruct Models
Coding Capability
Customization
Finetuning
Open Source
License Apache 2.0 Custom (Commercial OK)
Model Sizes 3B 7B, 13B, 70B

Other FastChat Comparisons

FastChat vs. Alpaca FastChat vs. Cerebras-GPT FastChat vs. Dolly FastChat vs. Falcon FastChat vs. FLAN-T5 FastChat vs. FLAN-UL2 FastChat vs. Gemma FastChat vs. Gemma 2 FastChat vs. GPT-J FastChat vs. GPT4All FastChat vs. GPTNeo FastChat vs. Grok FastChat vs. Guanaco FastChat vs. Koala FastChat vs. LLaMA FastChat vs. Llama 2 FastChat vs. Llama 3 FastChat vs. Mistral FastChat vs. MPT FastChat vs. OpenAssistant FastChat vs. OpenLLaMA FastChat vs. OPT FastChat vs. Orca FastChat vs. Phi FastChat vs. Pythia FastChat vs. RedPajama-INCITE FastChat vs. StableLM FastChat vs. StableVicuna FastChat vs. Vicuna FastChat vs. WizardLM

Other Llama 2 Comparisons

Llama 2 vs. Alpaca Llama 2 vs. Cerebras-GPT Llama 2 vs. Dolly Llama 2 vs. Falcon Llama 2 vs. FastChat Llama 2 vs. FLAN-T5 Llama 2 vs. FLAN-UL2 Llama 2 vs. Gemma Llama 2 vs. Gemma 2 Llama 2 vs. GPT-J Llama 2 vs. GPT4All Llama 2 vs. GPTNeo Llama 2 vs. Grok Llama 2 vs. Guanaco Llama 2 vs. Koala Llama 2 vs. LLaMA Llama 2 vs. Llama 3 Llama 2 vs. Mistral Llama 2 vs. MPT Llama 2 vs. OpenAssistant Llama 2 vs. OpenLLaMA Llama 2 vs. OPT Llama 2 vs. Orca Llama 2 vs. Phi Llama 2 vs. Pythia Llama 2 vs. RedPajama-INCITE Llama 2 vs. StableLM Llama 2 vs. StableVicuna Llama 2 vs. Vicuna Llama 2 vs. WizardLM

Undecided?

Get Advice