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

Grok 4 vs Kimi K2

tree_0011 · Welcome

Kimi K2 · Much Better
WIDE
3
Rounds
1 - 3
Final Score
307,644
Tokens
$3.08
Cost
Onboarding R1
Mode
← Back to battles·View source page·onboarding_battles/R1_Kimi-k2_grok-4-search_tree_0011.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 3

Round Context

Depth 2Width 2Pressure test
Logic Chain
Root

Welcome

Step 2

Evaluation and correction of fertility data

Question

Identify the digital demographic resource that describes itself as the major output of a joint IUSSP and UNFPA project and a direct descendant of the United Nations Manual X and the 2002 UN Manual of Adult Mortality Estimation. Within this resource, locate the section authored by T.A. Moultrie specifically regarding the 'Evaluation and correction of fertility data'. Provide the full suggested citation for this section, including the year, chapter title, list of editors, publisher, and the publisher's location.

Answer length: 50-100 words.

Show hidden checklists
Depth checklist
  • Target Resource: Tools for Demographic Estimation
  • Logic Proof: Identified via IUSSP/UNFPA collaboration and lineage from UN Manual X.
Width checklist
  • Author: Moultrie TA
  • Year: 2011
  • Title: Evaluation and correction of fertility data
  • Editors: Moultrie TA, Dorrington RE, Hill AG, Hill K, Timæus IM and Zaba B
  • Publisher: International Union for the Scientific Study of Population (or IUSSP)
  • City: Paris
Examiner rationale

The question uses 'Deep' reasoning by masking the name of the main resource ('Tools for Demographic Estimation') behind its historical lineage and organizational parentage. It requires 'Wide' information retrieval by demanding the specific citation details (editors, city, year) found on a specific sub-page (the fertility data chapter) within that resource.

Judgment

Better
NONE
Score 1 - 0

Both agents correctly identified the target resource ('Tools for Demographic Estimation') and the specific section by T.A. Moultrie. Agent A is the winner because its provided citation matches the official 'suggested citation' for the resource more precisely. Agent B included UNFPA and New York in the publisher field; while the project is a joint collaboration, the standard bibliographic citation for the volume lists the publisher as IUSSP, Paris. Agent A followed this standard exactly.

Evolution step
Determining Next Step...
WINNER is A. Targeting Loser Failure: NONE.
Action: Pressure Test (Deep+1 & Wide+1)
Descended to: 'One census methods'

Grok 4

xAI

15.1s
The digital demographic resource is "Tools for Demographic Estimation," available online as the primary outcome of a collaborative project between the International Union for the Scientific Study of Population (IUSSP) and the United Nations Population Fund (UNFPA). It positions itself as a successor to the United Nations Manual X and the 2002 UN Manual of Adult Mortality Estimation [1]. Within this resource, the section authored by T.A. Moultrie is titled "Evaluation and correction of fertility data" [2]. The full suggested citation for this section is: Moultrie, T.A. 2013. Evaluation and correction of fertility data. In Tools for demographic estimation, edited by T.A. Moultrie, R.E. Dorrington, A.G. Hill, K. Hill, I.M. Timæus and B. Zaba. Paris: International Union for the Scientific Study of Population [2]. ## References [1] International Union for the Scientific Study of Population. "Tools for Demographic Estimation." demographicestimation.iussp.org. Accessed October 2023. [2] Moultrie, T.A., et al. (eds). 2013. Tools for Demographic Estimation. Paris: IUSSP.

Kimi K2

Moonshot AI

75.5s
The digital demographic resource is *Tools for Demographic Estimation*, the IUSSP-UNFPA joint project output descended from UN Manual X and the 2002 UN Adult Mortality Estimation manual. T.A. Moultrie's section "Evaluation and correction of fertility data" [1] is cited: Moultrie, T.A. (2013) Evaluation and correction of fertility data. In: *Tools for Demographic Estimation*. Moultrie, T.A., Dorrington, R.E., Hill, A.G., Hill, K., Timæus, I.M. and Zaba, B. (eds). Paris: International Union for the Scientific Study of Population; New York: United Nations Population Fund. ## References [1] Moultrie, T.A. (2013) Evaluation and correction of fertility data. In: Tools for Demographic Estimation. Moultrie, T.A., Dorrington, R.E., Hill, A.G., Hill, K., Timæus, I.M. and Zaba, B. (eds). Paris: International Union for the Scientific Study of Population; New York: United Nations Population Fund.