← Heatmap / GPT 5.6 Luna · Task 51
GPT 5.6 Luna* · Tool use · Task 51 (Calculation, below tax-free line)
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 | 850.21 | 850.21 | 850.21 | 850.21 |
| employee contribution | 51.01 | 51.01 | 51.01 | 51.01 |
| allowed deduction | 125.58 | 125.58 | 125.58 | 125.58 |
| taxable pay | 673.62 | 673.62 | 673.62 | 673.62 |
| income tax | 0.00 | 0.00 | 0.00 | 0.00 |
| net pay | 673.62 | 673.62 | 673.62 | 673.62 |
| 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 · 10.2s · $0.0009
| 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": "39d9a95cfc04fd53-payroll", "kind": "payroll"},
{"id": "39d9a95cfc04fd53-contract", "kind": "contract"}
]
Assistant
read_document(document_id="39d9a95cfc04fd53-payroll")read_document(document_id="39d9a95cfc04fd53-contract")Tool
{
"kind": "payroll",
"record": {"gross_pay": "850.21", "payroll_month": "2026-01", "allowed_deduction": "125.58"}
}
Tool
{
"kind": "contract",
"gross_pay": "850.21"
}
Assistant
lookup_reference(reference="first-half")Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.06",
"cap": "4500.00",
"deduction": "400.00",
"free": "1100.00",
"upper": "2800.00",
"middle_rate": "0.12",
"upper_rate": "0.18"
}
Assistant
calculate(program="gross = 850.21\ncontribution = round(min(gross, 4500.00) * 0.06, 2)\ndeduction = 125.58\ntaxable = gross - contribution - deduction\ntax = round(max(0, taxable - 1100.00) * 0.12 + max(0, taxable - 2800.00) * (0.18 - 0.12), 2)\nnet = gross - contribution - deduction - tax")Reasoning
**Calculating net taxable income** I need to perform a calculation: taxable gross minus contributions and deductions. For the contribution, I’ll calculate 0.06 times 850.21, which gives me about 51.01. Then, I find the taxable amount as 673.62, with zero tax applied. To calculate the net amount, I’ll do 850.21 minus 51.01 minus 125.58, resulting in 673.62. I’ll ensure I use a calculator to confirm these figures accurately.
Tool
{
"results": {"gross": "850.21", "contribution": "51.01", "deduction": "125.58", "taxable": "673.62", "tax": "0.00", "net": "673.62"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "850.21",
"employee_contribution": "51.01",
"allowed_deduction": "125.58",
"taxable_pay": "673.62",
"income_tax": "0.00",
"net_pay": "673.62",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}
Reasoning
**Clarifying JSON output requirements** I need to make sure I'm providing the exact JSON fields in the response. The clauses will govern calculations R1 through R6, and it seems that R9 might not be necessary. I'm also wondering if I should include any explanations, but it's better to avoid those. It's important to note that the contract must match without any amendments, and this aspect of R9 is crucial to keep in mind.
Rollout #2 100.0% passed · 6 tool calls · 9.2s · $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": "39d9a95cfc04fd53-payroll", "kind": "payroll"},
{"id": "39d9a95cfc04fd53-contract", "kind": "contract"}
]
Assistant
read_document(document_id="39d9a95cfc04fd53-payroll")read_document(document_id="39d9a95cfc04fd53-contract")lookup_reference(reference="first-half")lookup_reference(reference="second-half")Tool
{
"kind": "payroll",
"record": {"gross_pay": "850.21", "payroll_month": "2026-01", "allowed_deduction": "125.58"}
}
Tool
{
"kind": "contract",
"gross_pay": "850.21"
}
Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.06",
"cap": "4500.00",
"deduction": "400.00",
"free": "1100.00",
"upper": "2800.00",
"middle_rate": "0.12",
"upper_rate": "0.18"
}
Tool
{
"reference": "second-half",
"months": ["2026-07", "2026-12"],
"rate": "0.05",
"cap": "4500.00",
"deduction": "400.00",
"free": "1100.00",
"upper": "3000.00",
"middle_rate": "0.08",
"upper_rate": "0.20"
}
Assistant
calculate(program="contribution = round(min(850.21, 4500.00) * 0.06, 2)\ntaxable = round(850.21 - contribution - 125.58, 2)\nincome_tax = round(max(0, taxable - 1100.00) * 0.12, 2)\nnet_pay = round(850.21 - contribution - 125.58 - income_tax, 2)")Reasoning
**Calculating contributions** I need to calculate the contributions, specifically using the formula: contribution minimum gross cap multiplied by 0.06, which equals 51.0126, so I round it to 51.01. The deduction is valid at 125.58, which is less than or equal to 400. Then I look at the taxable amount of gross contributions, which is 673.62. I want to confirm the net amount by subtracting from 850.21, which gives me 673.62 after deductions. I'll use a calculator to verify.
Tool
{
"results": {"contribution": "51.01", "taxable": "673.62", "income_tax": "0.00", "net_pay": "673.62"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "850.21",
"employee_contribution": "51.01",
"allowed_deduction": "125.58",
"taxable_pay": "673.62",
"income_tax": "0.00",
"net_pay": "673.62",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}
Reasoning
**Evaluating JSON requirements** I need to ensure we have the exact fields structured in JSON. I'm considering clauses where allowed deductions are valid up to 400, and gross contribution should be 799.20. It seems I might need to include a field named taxable_pay. I should also mention R1 to R6 categories as they’re relevant for the structure. Getting this right will help in creating an accurate object, which is crucial for our needs.
Rollout #3 100.0% passed · 5 tool calls · 9.9s · $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": "39d9a95cfc04fd53-payroll", "kind": "payroll"},
{"id": "39d9a95cfc04fd53-contract", "kind": "contract"}
]
Assistant
read_document(document_id="39d9a95cfc04fd53-payroll")read_document(document_id="39d9a95cfc04fd53-contract")Tool
{
"kind": "payroll",
"record": {"gross_pay": "850.21", "payroll_month": "2026-01", "allowed_deduction": "125.58"}
}
Tool
{
"kind": "contract",
"gross_pay": "850.21"
}
Assistant
lookup_reference(reference="first-half")Tool
{
"reference": "first-half",
"months": ["2026-01", "2026-06"],
"rate": "0.06",
"cap": "4500.00",
"deduction": "400.00",
"free": "1100.00",
"upper": "2800.00",
"middle_rate": "0.12",
"upper_rate": "0.18"
}
Assistant
calculate(program="employee_contribution = round(min(850.21, 4500.00) * 0.06, 2)\ntaxable_pay = round(850.21 - employee_contribution - 125.58, 2)\nincome_tax = round(max(0, taxable_pay - 1100.00) * 0.12 + max(0, taxable_pay - 2800.00) * 0.18, 2)\nnet_pay = round(850.21 - employee_contribution - 125.58 - income_tax, 2)")Reasoning
**Calculating contributions and taxes** I need to calculate the contribution, starting with 850.21 times 0.06, which gives me 51.01. Then, I'll subtract this from 850.21 along with a deduction of 125.58, resulting in 673.62. So, is the net amount really 673.62? It seems I’m arranging this as gross minus contribution, deduction, and tax equals 673.62. I’ll need the clauses R1-R6 next, and it looks like I require a tool to assist with this!
Tool
{
"results": {"employee_contribution": "51.01", "taxable_pay": "673.62", "income_tax": "0.00", "net_pay": "673.62"}
}
Assistant
{
"decision": "calculate",
"currency": "LCR",
"gross_pay": "850.21",
"employee_contribution": "51.01",
"allowed_deduction": "125.58",
"taxable_pay": "673.62",
"income_tax": "0.00",
"net_pay": "673.62",
"clauses": ["R1", "R2", "R3", "R4", "R5", "R6"]
}