Benchmark Almanac

WANDR

Claude Opus 5.5 72.3% leads since Sep 2026 Only in system cards

500 wide-search tasks: find tens to hundreds of entities and facts, then return structured records with citations.

Made by Perplexity Released Jul 2026 Deep research All tasks public Last in a system card Oct 2026 Last model added Oct 2026
Level
Everyday Most adults, without training
Scored
Graded by a model A language model scores each response, usually against a rubric.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
perplexityai/wandr 295 stars Paper Dataset
3
Models scored in lab cards
3
System cards report it, from 1 lab

Claude Opus 5.5 leads with 72.3%

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

  1. 72.3 Claude Opus 5.5
  2. 70.0 Claude Sonnet 5.5
  3. 49.9 Claude Haiku 5.5
  1. 1 Claude Opus 5.5 72.3%
  2. 2 Claude Sonnet 5.5 70%
  3. 3 Claude Haiku 5.5 49.9%
#ModelScoreSettingDateSource
1 Claude Opus 5.5 72.3% Sep 2026 Model card
2 Claude Sonnet 5.5 70% Sep 2026 Model card
3 Claude Haiku 5.5 49.9% Oct 2026 Model card

Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release.

Anthropic
Lab claims 1 leader
Claude Opus 5.5 72.3%

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card
0% 20% 40% 60% 80% 100% Near the ceiling (85%) Claude Opus 5.5 0% 20% 40% 60% 80% 100% Near the ceiling (85%) Claude Opus 5.5

Labs report it only in system cards

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.

3 system cards report it, from 1 lab

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
7 Oct 2026 Claude Haiku 5.5 system card 49.9 WANDR, soft F1 at max effort, frozen web index, printed on chart (Figure 8.8.3.A) Capabilities
28 Sep 2026 Claude Sonnet 5.5 system card 70 WANDR soft F1 at max effort, modified offline version (8.11.3, Figure 8.11.3.A) Capabilities
22 Sep 2026 Claude Opus 5.5 system card 72.3 WANDR soft F1 at max effort, modified offline version with frozen index, printed on chart (8.11.3, Figure 8.11.3.A) Capabilities

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