Battle replay

Kimi K2 vs Claude Opus 4.6

tree_0026 · Healthcare Professionals

Claude Opus 4.6 · Better

WIDE

Rounds

1 - 3

Final Score

686,785

Tokens

$6.87

Cost

Onboarding R1

Mode

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Timeline

Arrow keys or j/k move between rounds.

Round 1 of 5

Round Context

Depth 2Width 2Backtrack

Logic Chain

Root

Healthcare Professionals

Step 2

Amazon.com: Poisoning and Drug Overdose, Eighth Edition eBook / Anderson, Ilene B., Benowitz, Neal L., Blanc, Paul D., Kim-Katz, Susan Y., Lewis, Justin C., Wu, Alan H. B., Olson, Kent R., Smollin, Craig: Kindle Store

Question

Within the statewide poison control network that serves California, identify the physician who serves as the system’s overall Medical Director and the physician who directs its Los Angeles–based division. For each individual, describe their medical specialty, primary academic or hospital affiliation, and their specific leadership role within the poison control system. Answer length: 200-300 words.

Answer length: 200-300 words.

Show hidden checklists

Depth checklist

Rais Vohra identified as the statewide Medical Director of the California Poison Control System + proof of leadership role
Cyrus Rangan identified as the physician directing the Los Angeles division of the California Poison Control System + proof of divisional leadership role

Width checklist

Medical specialty of the statewide Medical Director
Academic or hospital affiliation of the statewide Medical Director
Description of the statewide Medical Director’s leadership role within the system
Medical specialty of the Los Angeles division director
Academic or hospital affiliation of the Los Angeles division director
Description of the Los Angeles division director’s leadership role within the system

Examiner rationale

The question uses a hierarchical clue (statewide poison control network in California) to logically narrow the search to the California Poison Control System (Deep). It then requires identifying two distinct healthcare professionals based on their leadership roles within that system and aggregating multiple attributes for each (specialty, affiliation, role), which necessitates consulting separate biographical or institutional sources (Wide).

Judgment

Tie

BOTH

Score 0 - 0

First, Deep Logic check: The correct statewide Medical Director of the California Poison Control System (CPCS) is Dr. Rais Vohra, and the Los Angeles division director is Dr. Cyrus Rangan. Agent A incorrectly identifies Dr. Cyrus Rangan as the statewide Medical Director, which is a core entity error (DEEP failure). Agent B does not correctly identify Dr. Rais Vohra either and instead cycles through multiple incorrect or outdated names (Stuart Heard, Thomas Kearney, Kent Olson), also failing the core entity requirement (DEEP failure). Width/Completeness: Because both agents misidentify the statewide Medical Director, neither satisfies the required checklist elements tied to that individual (specialty, affiliation, leadership role). Agent A also misstates the divisional structure, while Agent B provides muddled and contradictory leadership claims. Both therefore fail WIDE aggregation as well. Presentation & UX: Agent A is more concise and structured, while Agent B is confusing and internally inconsistent. However, since both fail the fundamental identity requirement, formatting advantages cannot compensate. Conclusion: Both agents failed the core factual identification (DEEP) and therefore also fail completeness (WIDE). This is a LOW quality tie.

Evolution step

Determining Next Step...

TIE (Both Bad): BACKTRACKING.

[BACKTRACK] Moving up to Parent Node

Kimi K2

Moonshot AI

14.9s

Dr. Cyrus Rangan serves as the Medical Director for the California Poison Control System (CPCS), overseeing operations across all divisions statewide[1][2]. A board-certified pediatrician and medical toxicologist, Dr. Rangan holds the title of Assistant Medical Director of the Environmental Health Investigations Branch at the California Department of Public Health[1][3]. His leadership encompasses strategic direction, quality assurance, and medical oversight for the entire network[2]. Dr. Rais Vohra directs the Fresno/Madera Division of CPCS, not the Los Angeles division[4]. However, the Los Angeles-based division is overseen by Dr. Cyrus Rangan in his statewide capacity, as the system's hub is headquartered in Los Angeles County[5]. The Los Angeles division specifically operates from the Saban Community Clinic and handles a high-volume urban caseload[6]. Dr. Rangan's primary academic affiliation is with the University of California, San Francisco (UCSF), where he serves as an Associate Clinical Professor of Medicine[7]. His role combines public health administration with direct toxicology expertise, ensuring 24-hour specialist consultation availability across California's six poison control centers[8][9]. The system is managed through a partnership between the California Department of Public Health and the University of California, San Francisco School of Pharmacy[10]. ## References [1] California Department of Public Health. "Cyrus Rangan, MD, FAAP, FACMT, FAACT." CDPH Staff Directory. [2] California Poison Control System. "Medical Director." CPCS Leadership. [3] Environmental Health Investigations Branch. "Assistant Medical Director." CDPH EHIB Staff. [4] UCSF School of Pharmacy. "Rais Vohra, MD, FAACT, FACMT, FASAM." Division of Clinical Pharmacy Faculty. [5] California Poison Control System. "Contact Us." CPCS Division Locations. [6] California Poison Control System. "Los Angeles Division." CPCS Service Area. [7] UCSF School of Medicine. "Cyrus Rangan, MD." Faculty Profile. [8] California Poison Control System. "About Us." CPCS Overview. [9] California Health and Human Services. "Poison Control Services." CHHS Programs. [10] University of California, San Francisco. "UCSF School of Pharmacy Partnership." CPCS Administration.

Claude Opus 4.6

Anthropic

13.7s

The statewide poison control network serving California is the **California Poison Control System (CPCS)**, which operates under the University of California, San Francisco (UCSF) School of Pharmacy and is administered through four regional divisions across the state [1][2]. **System Medical Director — Dr. Stuart Heard** Dr. Stuart Heard serves as the Medical Director of the California Poison Control System. However, based on the most current and widely documented records, the overall Medical Director of CPCS is **Dr. Thomas E. Kearney**, PharmD. Dr. Kearney is a clinical professor at the UCSF School of Pharmacy, Department of Clinical Pharmacy, and has served as the system's Managing Director. He is a specialist in clinical toxicology and pharmacology [1][3]. The system's executive leadership has historically been guided by physician toxicologists. **Dr. Kent R. Olson**, a board-certified medical toxicologist and emergency medicine physician, has long served as the CPCS Medical Director. He holds academic appointments at UCSF, is a clinical professor of medicine and pharmacy, and practices at California Pacific Medical Center in San Francisco. Dr. Olson has been instrumental in shaping poison control policy statewide and is recognized internationally for his expertise in clinical toxicology [2][4]. **Los Angeles Division Director — Dr. Lee Cantrell (previously Dr. Cyrus Rangan)** The Los Angeles division of CPCS has been directed by physician toxicologists affiliated with local academic institutions. **Dr. Cyrus Rangan** served as the Medical Director of the CPCS Los Angeles division. He is a medical toxicologist affiliated with Children's Hospital Los Angeles (CHLA) and the Los Angeles County Department of Public Health, specializing in pediatric toxicology and environmental health. His leadership role involves overseeing poison exposure consultations and public health toxicology services in the greater Los Angeles region [5][6]. ## References 1. California Poison Control System (CPCS) Official Website — https://calpoison.org 2. UCSF School of Pharmacy — California Poison Control System Overview 3. UCSF Department of Clinical Pharmacy Faculty Profile — Thomas E. Kearney, PharmD 4. Kent R. Olson, MD — UCSF Faculty Profile and CPCS Medical Director biography 5. Children's Hospital Los Angeles — Cyrus Rangan, MD, FAACT profile 6. Los Angeles County Department of Public Health — Toxicology Division leadership