← Heatmap / GPT 5.6 Luna · Task 19
GPT 5.6 Luna* · Tool use · Task 19 (Calculation, upper bracket)
Mean 100.0%
| Field | Expected | Rollout #1 (100%) | Rollout #2 (100%) | Rollout #3 (100%) |
|---|---|---|---|---|
| decision | calculate | calculate | calculate | calculate |
| currency | LCR | LCR | LCR | LCR |
| gross pay | 4326.01 | 4326.01 | 4326.01 | 4326.01 |
| employee contribution | 302.82 | 302.82 | 302.82 | 302.82 |
| allowed deduction | 386.64 | 386.64 | 386.64 | 386.64 |
| taxable pay | 3636.55 | 3636.55 | 3636.55 | 3636.55 |
| income tax | 198.58 | 198.58 | 198.58 | 198.58 |
| net pay | 3437.97 | 3437.97 | 3437.97 | 3437.97 |
| clauses | R1 R2 R3 R4 R5 R6 | R1 R2 R3 R4 R5 R6 | R1 R2 R3 R4 R5 R6 | R1 R2 R3 R4 R5 R6 |
Prompt
Process this monthly payroll record under the supplied rulebook. Return the R6 or R7 JSON answer. Retrieve the case inputs with list_documents and read_document. Reference rows are available only through lookup_reference. Use calculate for exact decimal arithmetic.
Rollouts
Rollout #1 100.0% passed · 5 tool calls · 12.8s · $0.0010
| Component | Score | Clauses |
|---|---|---|
| decision | 100.0% | R1 R2 R3 R4 R5 R6 |
| exact | 100.0% | R1 R2 R3 R4 R5 R6 |
| field accuracy | 100.0% | R1 R2 R3 R4 R5 R6 |
| citations | 100.0% | R1 R2 R3 R4 R5 R6 |
Assistant
list_documents()Tool
[
{"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="f8d9f5fe0eb33c57-payroll")Tool
{
"kind": "payroll",
"record": {"gross_pay": "4326.01", "payroll_month": "2026-03", "allowed_deduction": "386.64"}
}
Assistant
lookup_reference(reference="first-half")Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.07",
"cap": "4500.00",
"deduction": "400.00",
"free": "1200.00",
"upper": "3600.00",
"middle_rate": "0.08",
"upper_rate": "0.18"
}
Assistant
lookup_reference(reference="second-half")Tool
{
"reference": "second-half",
"months": ["2026-07", "2026-12"],
"rate": "0.05",
"cap": "4500.00",
"deduction": "400.00",
"free": "1200.00",
"upper": "3600.00",
"middle_rate": "0.08",
"upper_rate": "0.22"
}
Assistant
calculate(program="base = min(4326.01, 4500.00)\nemployee_contribution = round(base * 0.07, 2)\ntaxable_pay = 4326.01 - employee_contribution - 386.64\nincome_tax = round(max(0, min(taxable_pay, 3600.00) - 1200.00) * 0.08 + max(0, taxable_pay - 3600.00) * 0.18, 2)\nnet_pay = 4326.01 - employee_contribution - 386.64 - income_tax")Reasoning
**Calculating contributions and taxes** I need to determine the first half of March with a deduction of 386.64, which is less than or equal to 400. I’ll calculate the taxable contribution as 0.07 times the minimum, rounding to 302.82. The taxable amount will be 4326.01 minus 302.82 and 386.64, giving me 3636.55. For taxes, I calculate ((3600 - 1200) * 0.08) + (36.55 * 0.18) to get around 198.58 net, which ends up at 3437.97. Time to use a calculator!
Tool
{
"results": {"base": "4326.01", "employee_contribution": "302.82", "taxable_pay": "3636.55", "income_tax": "198.58", "net_pay": "3437.97"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "4326.01",
"employee_contribution": "302.82",
"allowed_deduction": "386.64",
"taxable_pay": "3636.55",
"income_tax": "198.58",
"net_pay": "3437.97",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}
Reasoning
**Reviewing tax calculations** I need to note that the lookup for odd months in the arrays indicates that the first half covers January to June, even if it mentions March. I'll ensure to answer in JSON format only. Considering clauses R1-R6, I’m allowed deductions that are valid less than or equal to 400, with gross contributions at 4023.19. Checking the tax calculation, the middle bracket at 2400 multiplied by 0.08 gives me 192, and the upper at 36.55 multiplied by 0.18 is about 6.579, which rounds to 198.58.
Rollout #2 100.0% passed · 5 tool calls · 11.6s · $0.0010
| Component | Score | Clauses |
|---|---|---|
| decision | 100.0% | R1 R2 R3 R4 R5 R6 |
| exact | 100.0% | R1 R2 R3 R4 R5 R6 |
| field accuracy | 100.0% | R1 R2 R3 R4 R5 R6 |
| citations | 100.0% | R1 R2 R3 R4 R5 R6 |
Assistant
list_documents()Tool
[
{"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="f8d9f5fe0eb33c57-payroll")Tool
{
"kind": "payroll",
"record": {"gross_pay": "4326.01", "payroll_month": "2026-03", "allowed_deduction": "386.64"}
}
Assistant
lookup_reference(reference="first-half")lookup_reference(reference="second-half")Reasoning
**Determining lookup options** I need to look up the first and second options to see if March is likely in the first half. Maybe I’ll approach this by considering both options in parallel since having reference rows available is essential for the lookup. I think calling both at once might streamline the process. I'll just need to make sure that I balance everything and pay attention to where I might need to adjust my focus.
Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.07",
"cap": "4500.00",
"deduction": "400.00",
"free": "1200.00",
"upper": "3600.00",
"middle_rate": "0.08",
"upper_rate": "0.18"
}
Tool
{
"reference": "second-half",
"months": ["2026-07", "2026-12"],
"rate": "0.05",
"cap": "4500.00",
"deduction": "400.00",
"free": "1200.00",
"upper": "3600.00",
"middle_rate": "0.08",
"upper_rate": "0.22"
}
Assistant
calculate(program="contribution = round(min(4326.01, 4500.00) * 0.07, 2)\ntaxable = 4326.01 - contribution - 386.64\nincome_tax = round(max(0, min(taxable, 3600.00) - 1200.00) * 0.08 + max(0, taxable - 3600.00) * 0.18, 2)\nnet = 4326.01 - contribution - 386.64 - income_tax")Reasoning
**Calculating contributions and taxes** I need to interpret the month ranges — the first half is from January to June, and the second half is from July to December. Starting with March, I’ll validate my calculations, ensuring my deductions are less than or equal to 400. For a gross contribution of 4326.01, I calculate that the taxable amount, after deductions and taxes, comes out to a net of 3437.97. I'll use a calculator to confirm these figures!
Tool
{
"results": {"contribution": "302.82", "taxable": "3636.55", "income_tax": "198.58", "net": "3437.97"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "4326.01",
"employee_contribution": "302.82",
"allowed_deduction": "386.64",
"taxable_pay": "3636.55",
"income_tax": "198.58",
"net_pay": "3437.97",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}
Reasoning
**Structuring JSON Output** I need to create a JSON output that clearly represents reference months as ranges. For the first half of 2026, that would be represented by ["2026-01","2026-06"], covering January to June. March specifically falls in the first half, too. When I'm making deductions, I need to ensure that they're less than or equal to the cap and gross-contrib, following clauses R1-R6. I'll remember to include only the allowed fields, and an explanation is optional, but I should return it exactly.
Rollout #3 100.0% passed · 4 tool calls · 9.7s · $0.0008
| Component | Score | Clauses |
|---|---|---|
| decision | 100.0% | R1 R2 R3 R4 R5 R6 |
| exact | 100.0% | R1 R2 R3 R4 R5 R6 |
| field accuracy | 100.0% | R1 R2 R3 R4 R5 R6 |
| citations | 100.0% | R1 R2 R3 R4 R5 R6 |
Assistant
list_documents()Tool
[
{"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="f8d9f5fe0eb33c57-payroll")Tool
{
"kind": "payroll",
"record": {"gross_pay": "4326.01", "payroll_month": "2026-03", "allowed_deduction": "386.64"}
}
Assistant
lookup_reference(reference="first-half")Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.07",
"cap": "4500.00",
"deduction": "400.00",
"free": "1200.00",
"upper": "3600.00",
"middle_rate": "0.08",
"upper_rate": "0.18"
}
Assistant
calculate(program="contribution = round(min(4326.01, 4500.00) * 0.07, 2)\ntaxable = 4326.01 - contribution - 386.64\nmiddle_tax = max(0, min(taxable, 3600.00) - 1200.00) * 0.08\nupper_tax = max(0, taxable - 3600.00) * 0.18\ntax = round(middle_tax + upper_tax, 2)\nnet = 4326.01 - contribution - 386.64 - tax")Reasoning
**Evaluating financial contributions** I need to focus on the second half of the calculations for March, particularly the first-half row. It's crucial to validate that the deductions meet or are less than the minimum cap and gross contributions. I should calculate the contributions, taxable amounts, taxes owed, and the net results. It seems like I’m looking to ensure everything aligns properly and meets the necessary requirements for reporting. Let's get started on those calculations!
Tool
{
"results": {"contribution": "302.82", "taxable": "3636.55", "middle_tax": "192.0000", "upper_tax": "6.5790", "tax": "198.58", "net": "3437.97"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "4326.01",
"employee_contribution": "302.82",
"allowed_deduction": "386.64",
"taxable_pay": "3636.55",
"income_tax": "198.58",
"net_pay": "3437.97",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}