---
title: "UnifiedBenchmarksDAItem"
---

## Fields

| Field                                                                                         | Type                                                                                          | Required                                                                                      | Description                                                                                   | Example                                                                                       |
| --------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------- |
| `arena`                                                                                       | *str*                                                                                         | :heavy_check_mark:                                                                            | Arena this ranking belongs to.                                                                | models                                                                                        |
| `avg_generation_time_ms`                                                                      | *Nullable[float]*                                                                             | :heavy_check_mark:                                                                            | Average generation time in milliseconds.                                                      | 3200                                                                                          |
| `category`                                                                                    | *str*                                                                                         | :heavy_check_mark:                                                                            | Category within the arena.                                                                    | codecategories                                                                                |
| `display_name`                                                                                | *str*                                                                                         | :heavy_check_mark:                                                                            | Human-readable model name from Design Arena.                                                  | Claude Sonnet 4                                                                               |
| `elo`                                                                                         | *float*                                                                                       | :heavy_check_mark:                                                                            | ELO rating from head-to-head arena battles.                                                   | 1423                                                                                          |
| `model_permaslug`                                                                             | *str*                                                                                         | :heavy_check_mark:                                                                            | Stable OpenRouter model identifier when mapped; otherwise the upstream Design Arena model id. | anthropic/claude-sonnet-4                                                                     |
| `pricing`                                                                                     | [Nullable[components.UnifiedBenchmarkPricing]](../components/unifiedbenchmarkpricing.mdx)      | :heavy_check_mark:                                                                            | OpenRouter pricing per token for this model. Null if pricing is unavailable.                  | \{<br/>"completion": "0.000015",<br/>"prompt": "0.000003"<br/>}                                |
| `source`                                                                                      | [components.UnifiedBenchmarksDAItemSource](../components/unifiedbenchmarksdaitemsource.mdx)    | :heavy_check_mark:                                                                            | Benchmark source discriminator.                                                               |                                                                                               |
| `tournament_stats`                                                                            | [components.TournamentStats](../components/tournamentstats.mdx)                                | :heavy_check_mark:                                                                            | Placement distribution from tournament matches.                                               |                                                                                               |
| `win_rate`                                                                                    | *float*                                                                                       | :heavy_check_mark:                                                                            | Win rate as a percentage (0–100).                                                             | 72                                                                                            |