Design Arena Benchmark Rankings
Returns ELO ratings from head-to-head arena battles on Design Arena. Filterable by arena (models/builders/agents) and category. Includes OpenRouter pricing per model. Authenticate with any valid OpenRouter API key. Rate-limited to 30 requests/minute per key and 500 requests/day per account.
Authentication
AuthorizationBearer
API key as bearer token in Authorization header
Query parameters
arena
Arena to query. Defaults to models.
Allowed values:
category
Category within the arena (e.g. codecategories, uicomponent, gamedev, 3d, dataviz, image, video, svg). When omitted, returns all categories.
max_results
Max results to return: per category when no category filter is applied (1–100, default 50).
Response
Design Arena ELO rankings with pricing and attribution metadata.
data
meta
Errors
400
Bad Request Error
401
Unauthorized Error
429
Too Many Requests Error
500
Internal Server Error