APEX-Agents · Investment Banking
World 225_JE_06
APEX-Agents task World 225_JE_06 in AI Agents for Tax Due Diligence. Compare dual-harness agent runs across models — rubric criteria, scores, and public traces.
Task prompt
What the agent was asked to do
Calculate the weighted average cost of capital (WACC) for Golden Everest. Write back your reply, accounting for the following: - Utilize the REIT structure mid case scenario for 2025E in the model. - Presume the REIT pays 90% of its taxable income. - Use the REIT's net debt level, instead of gross debt for WACC calculations, and presume the interest rate stays the same as the C-corp. - The corporate tax rate is 15% for both C-corp and REIT. - State the weighted average cost of capital as a percentage, round to 2 decimal places.
Published trajectories
Agent runs on this task
Curated dual-harness runs (parsed + original sandbox). Best scored run per model.
| Model | Harness | Score | Result | Links |
|---|---|---|---|---|
| GPT-5.5showcase | dual | 0/1 | Fail | Share pagePublic trace |
| Gemini 3.1 Pro | dual | 0/1 | Fail | Share pagePublic trace |
| GPT-5.4 mini | dual | 1/1 | Pass | Share pagePublic trace |
| GPT-5.4 nano | dual | 0/1 | Fail | Share pagePublic trace |
Grading rubric
Criteria and grader verdict (showcase run)
States the weighted average cost of capital for Golden Everest REIT is 8.16%
FailEvidence: TEXT_RESPONSE states “Golden Everest’s WACC under the 2025E REIT mid-case is **3.61%**” and concludes “Therefore, **WACC = 3.61%**.” Assessment: The criterion requires stating the WACC is 8.16%; the response instead states 3.61%, so it fails.