lm-sys/FastChat

An open platform for training, serving, and evaluating large language models. Release repo for Vicuna and Chatbot Arena.

Beginner friendly Everything

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4 beginner-friendly issues open

OpenAI-compat: gen_api_answer.py --openai-api-base /v1, not the API server Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

lm-sys/FastChat#3928 · Opened Aug 28, 2026
UI/UX improvement: Add confirmation for "Clear History" button Open

Difficulty 2/5 1-3 hours Newbie friendliness 64/100

lm-sys/FastChat#3881 · Opened May 30, 2026
inference truncate causes “output_ids” to be incorrectly sliced Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

lm-sys/FastChat#1912 · 7 comments · Opened Jul 10, 2023
Can you provide instructions to use the fastchat/data folder? Open

documentation good first issue help wanted

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

lm-sys/FastChat#428 · 6 comments · Opened Apr 14, 2023

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