Battle replay

GPT-5.1 vs Claude Opus 4.6

tree_0013 · History of swimwear

Claude Opus 4.6 · Much Better

WIDE

Rounds

0 - 2

Final Score

116,288

Tokens

$1.16

Cost

Onboarding R2

Mode

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Timeline

Arrow keys or j/k move between rounds.

Round 1 of 1

Round Context

Depth 2Width 2Mercy rule

Logic Chain

Root

History of swimwear

Step 2

Little wonder that bikinis have fit in almost from the start

Question

Researchers studying the history of swimwear often rely on archived versions of defunct brand websites and early online catalogs to trace changing styles and marketing language. Which organization has been donating its web crawl data to the Internet Archive since 1996 to support such long-term web preservation, and what is the name and current public accessibility status of its 2008 crawl collection?

Answer length: 200-300 words.

Show hidden checklists

Depth checklist

Alexa Internet identified as the organization that has donated crawl data since 1996 to the Internet Archive
Alexa Web 2008 Crawl identified as the specific collection, with confirmation of its restricted (non-public) access status

Width checklist

States that the organization has been donating web crawl data since 1996
Explains that the data are added to the Wayback Machine after an embargo period
Identifies the specific collection as the 2008 crawl data
Clarifies that the 2008 crawl collection is currently not publicly accessible

Examiner rationale

The question is anchored in the domain of the history of swimwear by framing the need for archived fashion and brand websites as research sources. The ‘deep’ component requires identifying the correct organization based on its long-term donation relationship with the Internet Archive. The ‘wide’ component requires aggregating multiple details: the start date of donations, the embargo process and Wayback Machine inclusion, and the specific 2008 crawl collection along with its current accessibility status. Answering fully demands synthesizing information across multiple public sources about the organization and its archival contributions.

Judgment

Much Better

WIDE

Score 0 - 2

First, Deep Logic: Both agents correctly identify **Alexa Internet** as the organization that has donated web crawl data to the Internet Archive since 1996. So both pass the core entity check. Next, Width/Completeness: The key differentiator is the 2008 crawl’s accessibility status. Agent B correctly states that the **Alexa Web Crawl 2008** collection is not publicly accessible in full downloadable form (restricted access), which aligns with the ground truth. Agent A incorrectly claims that the 2008 crawl is publicly accessible without special restrictions—this directly contradicts the required checklist item and constitutes a major factual error. Neither agent explicitly mentions the embargo period before data is added to the Wayback Machine, so both are slightly incomplete on that sub-point; however, Agent A’s incorrect accessibility claim is a more serious failure. Finally, User Experience & Presentation: Both are clearly written and well-structured, with bolding and references. Agent B provides slightly richer contextual framing and clearer explanation of access limitations. Since Agent B is factually correct and Agent A contains a significant factual error on a core sub-point, B is MUCH_BETTER under the rubric.

Evolution step

[GAME OVER] Mercy Rule Triggered (Diff >= 2.0)!

GPT-5.1

OpenAI

4.0s

The organization that has been donating web crawl data to the Internet Archive since 1996 is **Alexa Internet** (commonly referred to simply as “Alexa”), a web traffic analysis company that was acquired by Amazon in 1999. Alexa Internet systematically collected large-scale crawls of the public web and, from its inception, contributed those datasets to the Internet Archive to enable long‑term web preservation and retrospective research on online content, including defunct commercial sites and early e‑commerce catalogs.[1][2] In 2008, Alexa Internet conducted a major crawl whose data was subsequently transferred to the Internet Archive as a discrete collection. This dataset is known as the **“2008 Web Crawl”** (often described within the Internet Archive as a *partial* or *selected* 2008 web crawl from Alexa). The collection consists of WARC files and associated indexes covering billions of web pages, including many commercial domains relevant to fashion and swimwear history.[1][3] Regarding its current public accessibility status, the **2008 Web Crawl from Alexa is publicly accessible** through the Internet Archive. Researchers can access it via the Archive’s “Alexa crawls” or “Web wide crawls” collection pages and may download WARC files or query them using available interfaces and tools. There are no special access restrictions noted beyond the standard Internet Archive terms of use, making it usable for scholarly projects that analyze historical website content and marketing language.[1][3] ## References [1] Internet Archive, “Wide Crawl / Alexa Crawls” collection pages. [2] Internet Archive, “About the Wayback Machine” and related documentation on Alexa Internet contributions. [3] Internet Archive item records and metadata for the 2008 Alexa web crawl collection.

Claude Opus 4.6

Anthropic

14.8s

The organization that has been donating its web crawl data to the Internet Archive since 1996 is **Alexa Internet**, a web analytics company founded by Brewster Kahle and Bruce Gilliat in 1996 [1][2]. Alexa Internet was specifically designed to crawl and archive the web, and from its earliest days, it donated its extensive crawl data to the Internet Archive to support long-term web preservation efforts. This partnership has been fundamental to the growth of the Internet Archive's Wayback Machine, which researchers—including those studying the evolution of swimwear brands, fashion marketing, and defunct retail websites—rely upon to access historical snapshots of web pages [2][3]. Alexa Internet systematically crawled the web on a regular basis, capturing billions of pages over the years. These crawl datasets were organized into collections and made available for various research and preservation purposes. The specific 2008 crawl collection is known as the **"Alexa Web Crawl 2008"** (also referenced as the "Alexa Crawls" collection for that year) [4]. This collection contains a large-scale snapshot of the web as it existed during 2008 crawling periods. Regarding its current public accessibility status, the Alexa Web Crawl 2008 collection is **not publicly accessible** in its complete, downloadable form [4][5]. While the Internet Archive hosts the data, access to the raw Alexa crawl datasets has been restricted. The collection's status is typically listed as having limited or restricted access, meaning it is not freely browsable or downloadable by the general public in the same way that other Internet Archive collections are. Researchers may need to request special access or rely on the Wayback Machine interface for individual page lookups rather than bulk dataset access [5]. Alexa Internet itself was acquired by Amazon in 1999 and its web ranking service was officially retired in May 2022 [1]. ## References [1] Wikipedia. "Alexa Internet." https://en.wikipedia.org/wiki/Alexa_Internet [2] Internet Archive. "About the Internet Archive." https://archive.org/about/ [3] Kahle, Brewster. "Universal Access to All Knowledge." Internet Archive Blogs. https://blog.archive.org/ [4] Internet Archive. "Alexa Crawls." https://archive.org/details/alexacrawls [5] Internet Archive. "Alexa Web Crawl 2008 Collection." https://archive.org/details/alexa_web_crawl_2008