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FastChat-T5
by LMSYS
About the model:
Open-source T5-based chatbot.
Model type:
Text
Model performance class:
Full
Link to the model:
https://huggingface.co/lmsys/fastchat-t5-3b-v1.0
Base models:
Flan-T5-XL
End model:
FastChat-T5-3B-v1.0
End model license:
Apache-2.0
About the organisation:
According to its website, 'The Large Model Systems Organisation develops large models and systems that are open, accessible and scalable'
Link to the organisation:
https://lmsys.org/
Model release date:
March 2023
Availability
Base Model Data
End User Model Data
ShareGPT so now proprietary
Base Model Weights
Llama3
End User Model Weights
https://huggingface.co/lmsys/fastchat-t5-3b-v1.0
Training Code
Documentation
Code Documentation
Hardware Architecture
Preprint
Paper
Modelcard
on HF but little detail
https://huggingface.co/lmsys/fastchat-t5-3b-v1.0
Datasheet
Access
Package
API and Meta Prompts
Licenses
weights under apache2
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. This version of the index generated
10 March 2026
, website content last updated
11 March 2026
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