# Claude Sonnet 5.5 · Search Capability Leaderboard

* Search Intelligence Score: **74.1** (#2 in Search Intelligence)
* Without search: 33.2 · Lift from search +40.9
* Cost per 1K tasks: $796 (#18 in Search Efficiency)
* Time per task: 500s
* Medals: Silver, Search Intelligence
* Lab: Anthropic · Model id: claude-sonnet-5.5

## Accuracy by benchmark

| Suite | With search | Without search |
| ----- | ----------- | -------------- |
| DSQA  | 84.2        | 41.5           |
| HLE   | 60.0        | 44.0           |
| WISER | 78.0        | 14.0           |

## Compared with

| Model                                             | Score | Lift  | Cost per 1K tasks | Time per task |
| ------------------------------------------------- | ----- | ----- | ----------------- | ------------- |
| Claude Sonnet 5.5                                 | 74.1  | +40.9 | $796              | 500s          |
| [Claude Opus 5.5](/leaderboard/claude-opus-5-5)   | 75.4  | +31.2 | $949              | 512s          |
| [Claude Fable 5.1](/leaderboard/claude-fable-5-1) | 72.7  | +30.3 | $1,655            | 512s          |
| [Claude Opus 5](/leaderboard/claude-opus-5)       | 70.0  | +32.8 | $1,012            | 342s          |
| [Claude Sonnet 5](/leaderboard/claude-sonnet-5)   | 66.6  | +43.8 | $688              | 846s          |

Latest update October 12, 2026\. Methodology: /leaderboard#methodology