Battle replay

o3 vs Claude Opus 4.6

tree_0014 · Video rental shop

Claude Opus 4.6 · Much Better

DEEP

Rounds

1 - 3

Final Score

258,241

Tokens

$2.58

Cost

Onboarding R4

Mode

← Back to battles·View source page·onboarding_battles/R4_o3-search_vs_claude-opus-4.6-search_tree_0014.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 3

Round Context

Depth 2Width 2Pressure test

Logic Chain

Root

Video rental shop

Step 2

In a Copyright Ruling, the Legacy of the Betamax

Question

Two U.S. Supreme Court decisions—one in the 1980s involving a home video recording device challenged by major film studios, and another in the 2010s involving the resale of lower-priced foreign textbooks in the United States—significantly shaped the legal foundation that allows video rental shops and similar businesses to operate. Identify both cases and explain: (1) the year each decision was issued and the vote split, (2) the primary parties involved, (3) the core copyright issue at stake in each case, and (4) how the Court’s reasoning—particularly regarding the first-sale doctrine—affected the legality of renting or reselling legally purchased media such as videotapes, DVDs, or books.

Answer length: 200-300 words.

Show hidden checklists

Depth checklist

Sony Corp. of America v. Universal City Studios (1984) + Identified as the Supreme Court case about VCRs and contributory infringement, logically tied to the emergence of video rental shops
Kirtsaeng v. John Wiley & Sons, Inc. (2013) + Identified as the Supreme Court case affirming first-sale rights for imported copyrighted works, logically tied to resale markets affecting media distribution

Width checklist

Correct year (1984) and vote split (5-4) for the home video recording device case
Identification of the main parties (Sony Corp. of America v. Universal City Studios)
Explanation that the issue involved whether VCR technology constituted contributory copyright infringement
Connection to how the ruling enabled the growth of videotape rental businesses under first-sale principles
Correct year (2013) and vote split (6-3) for the textbook resale case
Identification of the main parties (Kirtsaeng v. John Wiley & Sons, Inc.)
Explanation that the issue involved resale of legally purchased foreign editions under the first-sale doctrine
Discussion of how the ruling reinforced the right to resell legally acquired goods, impacting secondary markets including media resale

Examiner rationale

The question uses deep logic by describing each case through contextual clues (home video recording dispute in the 1980s; textbook import resale dispute in the 2010s) without naming them directly. This forces the searcher to correctly identify the two landmark Supreme Court cases. It is wide because it requires aggregating multiple details—years, vote splits, parties, legal issues, and economic impact—from two separate decisions and synthesizing how both shaped the legal environment enabling video rental shops and media resale markets.

Judgment

Better

NONE

Score 0 - 1

First, Deep Logic: Both agents correctly identified Sony Corp. of America v. Universal City Studios (1984, 5–4) and Kirtsaeng v. John Wiley & Sons (2013, 6–3), and properly tied them to VCR legality and first-sale doctrine in resale markets. Both pass the core entity check. Second, Width/Completeness: Both responses accurately covered year, vote split, parties, copyright issue, and the impact on rental/resale markets. No significant omissions or hallucinations. Both satisfy the checklist. Finally, User Experience & Presentation: While Agent A is clear and well-structured, Agent B provides slightly stronger contextual framing (e.g., clarifying that Sony primarily addressed fair use and contributory infringement rather than first sale directly), includes specific decision dates, and uses bold headers for superior scannability. The synthesis at the end is slightly more polished and explanatory. Because both are factually strong and comprehensive, but Agent B offers marginally better formatting, nuance, and contextual richness, the verdict is B_BETTER.

Evolution step

Determining Next Step...

WINNER is B. Targeting Loser Failure: NONE.

Action: Pressure Test (Deep+1 & Wide+1)

Descended to: 'Revolution in Resale of Digital Books and Music'

o3

OpenAI

15.2s

Sony Corp. of America v. Universal City Studios, Inc. (1984) and Kirtsaeng v. John Wiley & Sons, Inc. (2013) anchor the legal freedom to rent or resell lawfully bought copies. 1. Year and vote • Sony (1984): 5–4 decision [1]. • Kirtsaeng (2013): 6–3 decision [2]. 2. Primary parties • Sony Corporation of America, maker of the Betamax VCR, versus Universal City Studios and other major Hollywood studios. • Supap Kirtsaeng, a Thai graduate student who imported cheaper Asian-market textbooks, versus U.S. publisher John Wiley & Sons. 3. Core copyright issue • Sony: Whether selling a device capable of copying television programs made the manufacturer secondarily liable for users’ infringement. The studios sought to block VCR sales, arguing that time-shifting copies violated their reproduction right. • Kirtsaeng: Whether the Copyright Act’s “first-sale” doctrine (17 U.S.C. §109) applies to copies made and sold abroad, determining if importing and reselling those copies inside the United States is lawful. 4. Effect on rental/resale legality • In Sony, the Court held that VCRs are lawful because they are “capable of substantial non-infringing uses,” notably private, non-commercial time-shifting. By confirming the legitimacy of owning and using VCRs, the decision implicitly preserved the right, under first-sale, to lend or rent legitimately purchased tapes, giving birth to the video-rental industry. • In Kirtsaeng, the Court explicitly interpreted first-sale to be “format-neutral and location-neutral”: once a copy is lawfully made and sold anywhere in the world, its owner may dispose of it “without the copyright holder’s further permission” [2]. This ruling protects textbook resellers, libraries, DVD rental stores, and online marketplaces, ensuring that renting or reselling legally acquired books, discs, or other tangible media does not infringe copyright so long as the copies were lawfully manufactured. ## References [1] Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984), Oyez summary. [2] Kirtsaeng v. John Wiley & Sons, Inc., 568 U.S. 519 (2013), Supreme Court opinion syllabus.

Claude Opus 4.6

Anthropic

14.0s

**Sony Corp. of America v. Universal City Studios, Inc. (1984)** was decided on January 17, 1984, by a 5–4 vote [1]. Sony manufactured the Betamax VCR, and Universal City Studios and Walt Disney Productions sued, claiming home video recording constituted copyright infringement. The core issue was whether selling a device capable of copying copyrighted television programs constituted contributory infringement. The Court held that time-shifting—recording programs for later personal viewing—qualified as fair use, and that Sony was not liable because the Betamax was "capable of substantial noninfringing uses" [1]. While this case primarily addressed fair use and contributory infringement rather than the first-sale doctrine directly, it legitimized the home video market. By establishing that VCRs were legal, it enabled the massive home video industry, including rental shops that purchased tapes and rented them under the first-sale doctrine [2]. **Kirtsaeng v. John Wiley & Sons, Inc. (2013)** was decided on March 19, 2013, by a 6–3 vote [3]. Supap Kirtsaeng, a Thai student studying in the U.S., purchased cheaper foreign editions of Wiley textbooks from Thailand and resold them domestically. The core copyright issue was whether the first-sale doctrine (17 U.S.C. § 109(a)) applied to goods lawfully manufactured and purchased abroad [3]. The Court ruled that the first-sale doctrine applies regardless of where a copyrighted work was manufactured or first sold, meaning once a copyright holder sells a copy, the buyer can freely resell, rent, or lend it [4]. Together, these decisions fortified the legal ecosystem enabling video rental stores, used bookstores, and similar businesses. Sony legitimized the home video market, while Kirtsaeng confirmed that first-sale rights apply universally to lawfully acquired copies, including foreign-made goods [2][4]. ## References [1] Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984). https://supreme.justia.com/cases/federal/us/464/417/ [2] "Sony Corp. v. Universal City Studios," Wikipedia. https://en.wikipedia.org/wiki/Sony_Corp._of_America_v._Universal_City_Studios,_Inc. [3] Kirtsaeng v. John Wiley & Sons, Inc., 568 U.S. 519 (2013). https://supreme.justia.com/cases/federal/us/568/519/ [4] "Kirtsaeng v. John Wiley & Sons, Inc.," Wikipedia. https://en.wikipedia.org/wiki/Kirtsaeng_v._John_Wiley_%26_Sons,_Inc.