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FastChat vs. Phi

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

Phi

Phi

Overview

Phi is a series of compact language models developed by Microsoft using high-quality synthetic data and curated web content. Phi-3 and Phi-3.5 (2024) significantly raised the bar for small models, with the 3.8B Phi-3 Mini matching much larger open-source models on key benchmarks.


Phi-1 and Phi-2 are 1.3B and 2.7B parameter language models, respectively, developed by Microsoft to demonstrate the ability of smaller language models trained on high-quality data. In April 2024, Phi-3 was released across Mini (3.8B), Small (7B), and Medium (14B) sizes. Phi-3 Mini achieves performance competitive with Llama 3 8B and Mistral 7B at a fraction of the compute, making it ideal for edge and constrained-resource deployments. Phi-3.5 Mini and MoE followed in August 2024 with further improvements.


Initial release: 2023-06-20

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More Comparisons

FastChat

Phi
Products & Features
Instruct Models
Coding Capability
Customization
Finetuning
Open Source
License Apache 2.0 MIT
Model Sizes 3B 1.3B, 2.7B, 3.8B, 7B, 14B

Other FastChat Comparisons

FastChat vs. Alpaca FastChat vs. Cerebras-GPT FastChat vs. DeepSeek 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. Llama 3.1 FastChat vs. Llama 3.2 FastChat vs. Llama 3.3 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. Qwen FastChat vs. RedPajama-INCITE FastChat vs. StableLM FastChat vs. StableVicuna FastChat vs. Vicuna FastChat vs. WizardLM

Other Phi Comparisons

Phi vs. Alpaca Phi vs. Cerebras-GPT Phi vs. DeepSeek Phi vs. Dolly Phi vs. Falcon Phi vs. FastChat Phi vs. FLAN-T5 Phi vs. FLAN-UL2 Phi vs. Gemma Phi vs. Gemma 2 Phi vs. GPT-J Phi vs. GPT4All Phi vs. GPTNeo Phi vs. Grok Phi vs. Guanaco Phi vs. Koala Phi vs. LLaMA Phi vs. Llama 2 Phi vs. Llama 3 Phi vs. Llama 3.1 Phi vs. Llama 3.2 Phi vs. Llama 3.3 Phi vs. Mistral Phi vs. MPT Phi vs. OpenAssistant Phi vs. OpenLLaMA Phi vs. OPT Phi vs. Orca Phi vs. Pythia Phi vs. Qwen Phi vs. RedPajama-INCITE Phi vs. StableLM Phi vs. StableVicuna Phi vs. Vicuna Phi vs. WizardLM

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