Battle replay

GPT-5.1 vs GPT 5.4

tree_0014 · Video rental shop

GPT 5.4 · Better

NONE

Rounds

0 - 2

Final Score

149,688

Tokens

$1.50

Cost

Onboarding R4

Mode

← Back to battles·View source page·onboarding_battles/R4_gpt-5.1-search_vs_gpt-5.4-search_tree_0014.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 2

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 from the 1980s involving home video recording technology and another from the 2010s involving the resale of legally purchased goods imported from abroad—significantly shaped the legal foundation that allowed video rental businesses to operate. Identify both cases and explain: (1) the core legal issue in each dispute, (2) the Supreme Court’s vote margin and any notable justice or litigant involved, and (3) how each ruling reinforced or clarified the “first sale” doctrine in ways that protected or influenced video rental and resale businesses such as national rental chains.

Answer length: 200-300 words.

Show hidden checklists

Depth checklist

Sony Corp. of America v. Universal City Studios (1984) + identified as the Betamax/VCR case involving home recording technology
Kirtsaeng v. John Wiley & Sons, Inc. (2013) + identified as the imported textbook resale case affirming first sale rights

Width checklist

Explanation of the 1984 home video recording (Betamax) case legal issue (whether VCRs enabled copyright infringement)
Correct 5–4 vote margin in the 1984 decision and mention of Justice Sandra Day O’Connor’s role
Connection between the 1984 ruling and protection of videotape rental businesses under first sale
Explanation of the 2013 imported textbook resale case legal issue (resale of lawfully purchased foreign editions)
Correct 6–3 vote margin in the 2013 decision and identification of Supap Kirtsaeng
Explanation of how the 2013 ruling reaffirmed/expanded the first sale doctrine affecting resale markets

Examiner rationale

The question uses temporal and thematic clues (1980s home recording technology; 2010s imported resale dispute) to indirectly point to the Betamax and Kirtsaeng cases without naming them (Deep reasoning). It then requires aggregation of multiple elements—legal issues, vote counts, key figures, and implications for first-sale doctrine and rental chains—ensuring broad information synthesis across both cases (Wide coverage) within the domain of video rental shops.

Judgment

Better

NONE

Score 0 - 1

First, Deep Logic: Both agents correctly identified Sony Corp. of America v. Universal City Studios (1984) and Kirtsaeng v. John Wiley & Sons (2013), satisfying the core entity requirement. Second, Width/Completeness: Both accurately explained the legal issues, vote margins (5–4 and 6–3), identified Supap Kirtsaeng, and described how each ruling affected rental/resale markets. Both omitted specific mention of Justice Sandra Day O’Connor’s role in Sony, but neither committed factual errors. Finally, User Experience: Agent B provides slightly stronger synthesis, especially in explicitly linking Kirtsaeng to geographic limits on downstream distribution and tying both rulings together in a clearer concluding paragraph. B also offers marginally richer contextual framing and more citation support. Since both are accurate and well-structured, but B is more cohesive and user-friendly, B wins on presentation and completeness rather than correctness.

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'

GPT-5.1

OpenAI

4.8s

The two cases are **Sony Corp. of America v. Universal City Studios, Inc. (1984)** and **Kirtsaeng v. John Wiley & Sons, Inc. (2013)**. 1. **Core legal issues** - **Sony (Betamax case)**: Whether selling home video recorders that consumers used to tape broadcasts for later viewing constituted contributory copyright infringement by Sony, and whether “time‑shifting” was a fair use. [1] - **Kirtsaeng**: Whether the “first sale” doctrine in 17 U.S.C. §109 applies to copies of copyrighted works that were lawfully made and sold abroad, then imported and resold in the United States without the copyright owner’s permission. [2] 2. **Vote margins and notable figures** - **Sony**: The Court ruled **5–4** for Sony; Justice John Paul Stevens wrote the majority, holding Sony not liable. The losing studios included Universal and Disney. [1] - **Kirtsaeng**: The Court ruled **6–3** for Supap Kirtsaeng, a student reselling foreign‑edition textbooks; Justice Stephen Breyer wrote the majority. [2] 3. **Effect on first sale and video/resale businesses** - **Sony** effectively legitimated home recording and, by extension, the growth of the videotape and video rental markets, making devices and private copies lawful inputs for rental businesses. [1] - **Kirtsaeng** strongly affirmed that once a copy is lawfully made and sold anywhere, the copyright owner’s control over its distribution is exhausted, protecting secondary markets and cross‑border resales—principles that buttress rental chains and resale‑based business models. [2][3] ## References [1] Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984). [2] Kirtsaeng v. John Wiley & Sons, Inc., 568 U.S. 519 (2013). [3] U.S. Copyright Office, “First Sale Doctrine” overview and commentary on Sony and Kirtsaeng.

GPT 5.4

OpenAI

12.4s

The two cases are **Sony Corp. of America v. Universal City Studios, Inc.** (1984) and **Kirtsaeng v. John Wiley & Sons, Inc.** (2013). In **Sony**, the issue was whether selling the Betamax VCR created contributory copyright liability because consumers could record broadcast television at home. The Court, by **5–4**, held that private, noncommercial “time-shifting” was fair use and that Sony could not be liable because the device was “capable of substantial noninfringing uses.” Justice **John Paul Stevens** wrote the majority opinion; the plaintiffs were Universal and Disney film interests seeking to stop the technology.[1][2] In **Kirtsaeng**, the issue was whether the Copyright Act’s **first sale doctrine** lets an owner resell copyrighted goods that were lawfully made abroad and then imported into the United States. The Court, by **6–3**, ruled yes: lawful foreign-made copies can be resold without the copyright owner’s permission. Justice **Stephen Breyer** wrote the majority; the named litigant, **Supap Kirtsaeng**, was a Thai student who resold cheaper foreign editions in the U.S.[3][4] These decisions mattered to video rental and resale businesses in different but complementary ways. **Sony** preserved the legality of home video technology itself, making the VCR market viable and enabling the consumer ecosystem on which rental chains depended.[1][2] **Kirtsaeng** directly strengthened first sale by confirming that lawful purchasers may resell or lend imported copies, preventing copyright owners from using geography to control downstream distribution.[3][4] Together, they protected the practical and legal conditions that allowed national rental chains and secondary markets to buy physical copies, rent them out, and resell inventory with less fear of copyright-based restraints.[3][5] ## References 1. Oyez, *Sony Corp. of America v. Universal City Studios, Inc.*, https://www.oyez.org/cases/1983/81-1687 2. Justia U.S. Supreme Court Center, *Sony Corp. of America v. Universal City Studios, Inc., 464 U.S. 417 (1984)*, https://supreme.justia.com/cases/federal/us/464/417/ 3. Oyez, *Kirtsaeng v. John Wiley & Sons, Inc.*, https://www.oyez.org/cases/2012/11-697 4. Justia U.S. Supreme Court Center, *Kirtsaeng v. John Wiley & Sons, Inc., 568 U.S. 519 (2013)*, https://supreme.justia.com/cases/federal/us/568/519/ 5. Legal Information Institute, Cornell Law School, *17 U.S. Code § 109 - Limitations on exclusive rights: Effect of transfer of particular copy or phonorecord*, https://www.law.cornell.edu/uscode/text/17/109