Task 19 · MiMo V2.6 Pro

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MiMo V2.6 Pro · 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 · 4 tool calls · 16.3s · $0.0013

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()

Reasoning

Let's start by listing documents.

Tool

[
  {"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]

Assistant

read_document(document_id="f8d9f5fe0eb33c57-payroll")

Reasoning

Read the payroll document.

Tool

{
  "kind": "payroll",
  "record": {"gross_pay": "4326.01", "payroll_month": "2026-03", "allowed_deduction": "386.64"}
}

Assistant

lookup_reference(reference="first-half")

Reasoning

Payroll month 2026-03 is in the first half of 2026. Let me look up the reference.

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)\nallowed = 386.64\ntaxable = 4326.01 - contribution - allowed\ntax_mid = max(min(taxable, 3600.00) - 1200.00, 0) * 0.08\ntax_upper = max(taxable - 3600.00, 0) * 0.18\nincome_tax = round(tax_mid + tax_upper, 2)\nnet = 4326.01 - contribution - allowed - income_tax")

Reasoning

Gross pay 4326.01, cap 4500, rate 0.07. Contribution = round(min(4326.01, 4500) * 0.07, 2) = round(302.8207, 2) = 302.82.

Allowed deduction 386.64 ≤ deduction cap 400.00, and ≤ gross - contribution = 4326.01 - 302.82 = 4023.19. OK.

Taxable pay = 4326.01 - 302.82 - 386.64 = 3636.55.

Tax: free 1200, upper 3600, middle_rate 0.08, upper_rate 0.18.
Portion up to 1200: untaxed.
Portion 1200 to 3600: 2400 * 0.08 = 192.
Portion above 3600: 3636.55 - 3600 = 36.55 * 0.18 = 6.579 → sum = 192 + 6.579 = 198.579 → round total = 198.58.

Net pay = 4326.01 - 302.82 - 386.64 - 198.58 = 3437.97.

Let me verify with calculate.

Tool

{
  "results": {"contribution": "302.82", "allowed": "386.64", "taxable": "3636.55", "tax_mid": "192.0000", "tax_upper": "6.5790", "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

All checks pass. Return the R6 JSON.

Rollout #2 100.0% passed · 5 tool calls · 19.4s · $0.0015

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()

Reasoning

Let me list documents.

Tool

[
  {"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]

Assistant

read_document(document_id="f8d9f5fe0eb33c57-payroll")

Reasoning

Read the payroll document.

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

March 2026 — which reference row? Need lookup_reference. Likely first-half covers Jan–Jun, second-half Jul–Dec. Let me check both? The rules say "Read first-half or second-half payroll reference rates and effective months." Effective months matter. Let me lookup 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"
}

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)\ndeduction_check = max(386.64, 0.00)\ntaxable_pay = 4326.01 - contribution - 386.64\nmiddle_tax = min(max(taxable_pay - 1200.00, 0.00), 3600.00 - 1200.00) * 0.08\nupper_tax = max(taxable_pay - 3600.00, 0.00) * 0.18\nincome_tax = round(middle_tax + upper_tax, 2)\nnet_pay = 4326.01 - contribution - 386.64 - income_tax")

Reasoning

Payroll month 2026-03 → first-half row: rate 0.07, cap 4500.00, deduction cap 400.00, free 1200, upper 3600, middle0.08, upper 0.18.

gross = 4326.01, contribution = round(min(4326.01, 4500) * 0.07, 2) = round(302.8207, 2) = 302.82.

allowed_deduction = 386.64 ≤ 400 and ≤ gross - contribution = 4326.01 - 302.82 = 4023.19. OK.

taxable = 4326.01 - 302.82 - 386.64 = 3636.55.

Tax: free 1200 untaxed. Portion from 1200 to 3600 = 2400 * 0.08 = 192.00. Portion above 3600 = 3636.55 - 3600 = 36.55 * 0.18 = 6.579. Total = 198.579 → round 198.58. But rule: don't round intermediate products separately before summing. So compute exactly then round.

net = 4326.01 - 302.82 - 386.64 - 198.58 = 3437.97.

Let me verify with calculate.

Tool

{
  "results": {"contribution": "302.82", "deduction_check": "386.64", "taxable_pay": "3636.55", "middle_tax": "192.0000", "upper_tax": "6.5790", "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

All checks pass. Return JSON.

Rollout #3 100.0% passed · 4 tool calls · 18.8s · $0.0013

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()

Reasoning

Let me list documents first.

Tool

[
  {"id": "f8d9f5fe0eb33c57-payroll", "kind": "payroll"}
]

Assistant

read_document(document_id="f8d9f5fe0eb33c57-payroll")

Reasoning

Read the payroll document.

Tool

{
  "kind": "payroll",
  "record": {"gross_pay": "4326.01", "payroll_month": "2026-03", "allowed_deduction": "386.64"}
}

Assistant

lookup_reference(reference="first-half")

Reasoning

Payroll month 2026-03 → first-half reference. Let me lookup the first-half reference.

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)\nallowed = 386.64\ntaxable = 4326.01 - contribution - allowed\ntax = (min(taxable, 3600.00) - 1200.00) * 0.08 + max(taxable - 3600.00, 0) * 0.18\nincome_tax = round(tax, 2)\nnet = 4326.01 - contribution - allowed - income_tax")

Reasoning

Gross pay 4326.01, month 2026-03 → first-half row applies. Rate 0.07, cap 4500, deduction cap 400, free 1200, upper 3600, middle_rate 0.08, upper_rate 0.18.

Employee contribution = round(min(4326.01, 4500) * 0.07, 2) = round(4326.01 * 0.07, 2) = 302.8207 → 302.82.

Allowed deduction 386.64 ≤ 400 cap, and ≤ gross - contribution = 4326.01 - 302.82 = 4023.19. OK.

Taxable pay = 4326.01 - 302.82 - 386.64 = 3636.55.

Income tax: free 1200 untaxed. Portion from 1200 to 3600 = 2400 * 0.08 = 192. Portion above 3600 = 3636.55 - 3600 = 36.55 * 0.18 = 6.579. Total = 192 + 6.579 = 198.579 → round half up → 198.58.

Note: "Do not round intermediate bracket products separately before summing income tax." So sum then round: 198.579 → 198.58.

Net pay = 4326.01 - 302.82 - 386.64 - 198.58 = 3437.97.

Let me verify with calculate.

Tool

{
  "results": {"contribution": "302.82", "allowed": "386.64", "taxable": "3636.55", "tax": "198.5790", "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

All values confirmed. Return JSON.