LMArena Model List
List every model available on LMArena right now with its organization, input and output modalities and whether you can pick it directly.
Tool directory
Frequently asked questions
What is LMArena?
A public arena where people compare anonymous model answers and vote; the votes become leaderboards.
Does this show rankings?
No. It lists available models; see the Lab arenas and leaderboards for rankings.
Is LMArena Model List free?
It needs a SandBase account. This API is in the SandBase daily free quota (100 calls per organization per day, shared, reset at 00:00 UTC); after that each run costs about $0.01 on your SandBase account.
Can I call this API directly?
Yes. This page calls lmarena/list-available-models on SandBase. Call POST /v1/api/lmarena/list-available-models with your SandBase API key; the request example is above.
Are my searches stored?
No. The Lab forwards this one request to SandBase and shows the answer; it keeps neither the input nor the result on the server.