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LMArena Text Leaderboard

https://api.sandbase.ai/v1/api/lmarena/text-leaderboard

Fetch the Text Arena leaderboard showing model rankings for text generation tasks. Returns entries and the full initialModels list of available models.

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Price
$0.15USD / call
Method
POST
Response
Async JSON
Parameters
0 required · 0 optional

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Input
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Model card

Specifications

Pricing

Base price
$0.15 / run

Request & response

Method
POST
Request body
application/json
Response
application/json
Execution
async

Parameters

Parameters
None

Access

Provider
LMArena
API
Platform API
Base URL
https://api.sandbase.ai
Endpoint
/v1/api/lmarena/text-leaderboard
Authentication
Bearer API key

API README

LMArena Text Leaderboard

Fetch the Text Arena leaderboard showing model rankings for text generation tasks. Returns entries and the full initialModels list of available models.

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Platform API endpoint with unified authentication and usage tracking.

Production API
Platform API endpoint
https://api.sandbase.ai/v1/api/lmarena/text-leaderboard
Authorization header
Authorization: Bearer $SANDBASE_API_KEY
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/api/lmarena/text-leaderboard" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{}
SANDBASE_JSON
)
printf '%s\n' "$result"

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LMArena Text LeaderboardThis API
LMArena		$0.15 per callAsync JSONOct 30, 2026

Questions

FAQ

How do I use the LMArena Text Leaderboard API?

Send a POST request to https://api.sandbase.ai/v1/api/lmarena/text-leaderboard with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.

How much does the LMArena Text Leaderboard API cost?

$0.15 per call, billed from your SandBase balance. You are only charged for calls you make; there is no subscription.

What parameters does the LMArena Text Leaderboard API accept?

LMArena Text Leaderboard takes no input parameters; send an empty JSON body.

What does the LMArena Text Leaderboard API return?

A JSON result. This endpoint runs asynchronously, so the response tells you how to fetch the finished result.

Do I need a LMArena developer account or API key?

No. LMArena Text Leaderboard runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for LMArena API access separately.