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APEX-Agents · Law

World431_DM_04

0/3Fail

APEX-Agents task World431_DM_04 in AI Agents for Real Estate Lease Review. Compare dual-harness agent runs across models — rubric criteria, scores, and public traces.

AI Agents for Real Estate Lease ReviewLaw World 431Dual harnessGrader: rubric
task_cba85c18cb7c456da8497c1018c75b16
Law World 431
message_in_console
7 models · dual config

Task prompt

What the agent was asked to do

MGR Real Estate Inc. ("MGR") and "AI Automation Group, LLC" ("AIAG") entered into a letter of intent (“LOI”) on December 2, 2025 for 2020 Main Street, Irvine, CA (the "Building"). The letter included estimates for common area expenses for the first year of the lease term at $10 per square foot. However, it misstated the total square footage as 1,500. The first full year in which AIAG was obligated to pay its share of common area expenses was 2026. MGR invoiced AIAG $150,000 for common area expenses, which was about 10X more than the expected $15,000 estimated in the LOI. AIAG filed suit against MGR seeking damages and rescission of the lease, claiming fraud. AIAG’s primary argument is that 1) MGR provided an estimate that it knew or should have known was inaccurate and 2) MGR cannot absolve itself from fraud by any stipulation in the contract. MGR argued that the integration clause in Section 10L of the lease bars introduction of the LOI and that AIAG's reliance on the LOI is unreasonable. Is AIAG likely to prevail in its argument? Provide your reply to me in here with 1) "Yes/No" conclusion; and 2) 1-2 sentence explanation.

Published trajectories

Agent runs on this task

Curated dual-harness runs (parsed + original sandbox). Best scored run per model.

ModelHarnessScoreResultLinks
GPT-5.5showcasedual0/3Fail
fireworks models Kimi K2dual0/3Fail
Gemini 3 Flashdual2/3Fail
Gemini 3.1 Produal0/3Fail
GPT-5.4dual0/3Fail
GPT-5.4 minidual0/3Fail
GPT-5.4 nanodual0/3Fail

Grading rubric

Criteria and grader verdict (showcase run)

  1. States "No", AIAG is not likely to prevail in its argument

    Fail

    Evidence: TEXT_RESPONSE states “1. **Yes.**” and “AIAG is likely to defeat MGR’s Section 10L/integration-clause argument.” Assessment: Criterion requires stating “No,” AIAG is not likely to prevail. The response states the opposite, so fail.

  2. States AIAG’s reliance on the estimate was unreasonable, negating a successful cause of action for fraud

    Fail

    Evidence: TEXT_RESPONSE says “the 10X discrepancy supports an inference of misrepresentation, though AIAG still must prove justifiable reliance.” Assessment: Criterion requires stating AIAG’s reliance on the estimate was unreasonable, negating fraud. The response does not say reliance was unreasonable; it suggests potential justifiable reliance remains to be proven. Fail.

  3. States the fraud exception to parol evidence rule is not triggered because the undisputed facts leave no room for a difference of interpretation of the parties’ intent

    Fail

    Evidence: TEXT_RESPONSE says “California law permits pre-contract LOI evidence to prove fraudulent inducement.” Assessment: Criterion requires stating the fraud exception to the parol evidence rule is not triggered because undisputed facts leave no room for different interpretation of intent. The response states the contrary and does not include that reasoning. Fail.