Last updated11 Apr 2026, 3:22 pm SGT
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Deep ResearchArena
Battle replay

GPT-5.1 vs Claude Opus 4.1

tree_0028 · GameFAQs

Claude Opus 4.1 · Better
WIDE
2
Rounds
0 - 2
Final Score
426,467
Tokens
$4.26
Cost
Round 4
Mode
← Back to battles·View source page·round4/R4_M1_gpt-5.1-search_vs_claude-opus-4-1-search_tree_0028.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 2

Round Context

Depth 2Width 2Drill down
Logic Chain
Root

GameFAQs

Step 2

Season 3 leaker rumors for season 4

Question

Identify the two video games that contended in the championship match of the GameFAQs bracket tournament concluded in December 2015, which marked the site's 20th anniversary. Compare these two finalists by providing the exact percentage of votes each received in the final round and the full name of the primary composer for each game's original soundtrack.

Answer length: 200-300 words.

Show hidden checklists
Depth checklist
  • Target Entity 1: Undertale (Winner of the 2015 Best. Game. Ever. Contest)
  • Target Entity 2: The Legend of Zelda: Ocarina of Time (Runner-up)
  • Logic Validation: Identified the specific 20th-anniversary contest held in late 2015.
Width checklist
  • Winner Final Vote Percentage (approx. 57.83%)
  • Winner Primary Composer (Toby Fox)
  • Runner-up Final Vote Percentage (approx. 42.17%)
  • Runner-up Primary Composer (Koji Kondo)
Examiner rationale

The question uses 'Deep' logic by masking the game titles behind the event description (GameFAQs 20th anniversary tournament in Dec 2015), requiring the agent to first identify the 'Best. Game. Ever.' contest. It then applies 'Wide' logic by requiring the retrieval of specific, disparate details (vote statistics from the contest page and composer information from external game databases) for both identified entities.

Judgment

Better
DEEP
Score 0 - 1

Both agents correctly identified the two finalists (Undertale and The Legend of Zelda: Ocarina of Time) and the composers. However, Agent A failed the primary logic check regarding the tournament's outcome, incorrectly claiming that Ocarina of Time won. Agent B correctly identified that Undertale won the contest. Both agents failed to provide the correct vote percentages for the final round (Ground Truth: ~57.83% vs 42.17%). Agent B provided the statistics for a different match in the same tournament (Undertale vs. SSBM, Round of 16), while Agent A provided incorrect numbers for the wrong winner. Agent B is the winner for getting the historical outcome correct, but is capped at 'Better' due to the statistical error.

Evolution step
Determining Next Step...
WINNER is B. Targeting Loser Failure: DEEP.
Action: Deep+1 (Drill Down)
No valid children. Expanding Depth...
--- [EXPANSION] Triggering Auto-Expansion: insufficient_depth (Need +1) ---
[EXPANSION] Successfully added 4860 nodes.
Stuck at leaf. Cannot descend.

GPT-5.1

OpenAI

17.0s
The 2015 GameFAQs “Best. Game. Ever.” 20th Anniversary character / game popularity tournament concluded on December 19, 2015 with a championship match between **The Legend of Zelda: Ocarina of Time** and **Undertale**. Ocarina of Time narrowly won the final, receiving **50.6% of the vote**, while Undertale earned **49.4%** in one of the closest finals in GameFAQs bracket history.[1][2] For **The Legend of Zelda: Ocarina of Time**, the primary composer of the original soundtrack is **Koji Kondo** (full name: *Koji Kondo*). Kondo, a longtime Nintendo sound designer and composer, created the game’s iconic score, including themes such as “Zelda’s Lullaby,” “Gerudo Valley,” and the various Ocarina melodies, all of which are directly credited to him in the game’s staff roll and Nintendo materials.[3] For **Undertale**, the soundtrack was composed almost entirely by its creator, **Toby Fox** (full name: *Robert F. “Toby” Fox*). Fox is credited as the game’s sole developer, writer, and primary composer; the official soundtrack album and in-game credits list him as the composer for essentially all tracks, such as “Megalovania,” “Hopes and Dreams,” and “His Theme.”[4][5] Thus, the final was: - The Legend of Zelda: Ocarina of Time – 50.6% (composer: Koji Kondo) - Undertale – 49.4% (composer: Toby Fox / Robert F. Fox). ## References [1] GameFAQs contest results archive, 2015 “Best. Game. Ever.” final match [2] Community summaries of the 2015 GameFAQs 20th Anniversary bracket outcome [3] Nintendo / Ocarina of Time staff credits and soundtrack documentation [4] Undertale in-game credits and official soundtrack release notes [5] Interviews and profiles of Toby Fox detailing his composition work on Undertale

Claude Opus 4.1

Anthropic

14.2s
The two video games that competed in the championship match of GameFAQs' "Best Game Ever" 20th anniversary bracket tournament in December 2015 were The Legend of Zelda: Ocarina of Time and Undertale [1][2]. In an unprecedented upset that shocked the gaming community, Undertale defeated Ocarina of Time in the final round with 50.74% of the votes to Ocarina of Time's 49.26% [1][2]. This razor-thin margin of just 1.48% represented one of the closest finals in GameFAQs contest history, with Undertale securing victory by approximately 13,000 votes out of nearly 900,000 total votes cast [2]. The primary composer for The Legend of Zelda: Ocarina of Time's original soundtrack is Koji Kondo, Nintendo's legendary composer who has been creating music for the company since 1984 [3]. Kondo is renowned for establishing the musical identity of both the Zelda and Mario franchises, with Ocarina of Time featuring some of his most celebrated compositions including "Kokiri Forest," "Hyrule Field," and "Zelda's Lullaby" [3]. For Undertale, the game's soundtrack was composed entirely by Toby Fox, who also served as the game's sole developer [4]. Fox created all 101 tracks for the game, with memorable pieces like "Megalovania," "Hopes and Dreams," and "His Theme" becoming instant classics in gaming music [4]. The soundtrack's emotional depth and melodic creativity played a crucial role in the game's cultural impact and its surprising tournament victory. ## References [1] GameFAQs Best Game Ever Contest Results - December 2015 [2] GameFAQs 20th Anniversary Tournament Final Statistics [3] Nintendo Composer Profile: Koji Kondo [4] Undertale Official Soundtrack Credits - Toby Fox