EKWbench

task_111Manufacturing

16 verifiers · 15 core · 1 secondary · 16 LLM-graded

TaxonomyManufacturingBuyers and purchasing agents

How each model performed on this task. Every chart states its N, and the reward carries a 95% confidence interval once there is more than one trial to measure.

Core metrics

Core Pass %

Mean share of the core verifiers passing, averaged over runs. N = 4 trials per model.

  1. 87%

    Claude Opus 5max

  2. 82%

    GPT-5.6 Terramax

  3. 73%

    GPT-5.6 Solmax

  4. 67%

    Claude Sonnet 5max

  5. 37%

    Gemini 3.6 Flashhigh

  6. 25%

    Gemini 3.1 Prohigh

Verifier Pass %

Mean fraction of all verifiers passing, across trials. N = 4 trials per model.

  1. 88%

    Claude Opus 5max

  2. 83%

    GPT-5.6 Terramax

  3. 75%

    GPT-5.6 Solmax

  4. 67%

    Claude Sonnet 5max

  5. 41%

    Gemini 3.6 Flashhigh

  6. 28%

    Gemini 3.1 Prohigh

Avg Cost

Mean API spend across trials; the line under a value is its observed range. N = 4 trials per model.

  1. $13.21$10.52–$18.68

    Claude Opus 5max

  2. $12.78$8.20–$16.55

    Claude Sonnet 5max

  3. $4.40$3.86–$5.16

    GPT-5.6 Solmax

  4. $1.51$1.16–$2.06

    Gemini 3.6 Flashhigh

  5. $1.49$1.32–$1.68

    GPT-5.6 Terramax

  6. $0.60$0.37–$0.83

    Gemini 3.1 Prohigh

Extended metrics

Secondary Pass %

Mean fraction of the secondary verifiers passing. N = 4 trials per model.

  1. 100%

    Claude Opus 5max

  2. 100%

    GPT-5.6 Solmax

  3. 100%

    GPT-5.6 Terramax

  4. 100%

    Gemini 3.6 Flashhigh

  5. 75%

    Claude Sonnet 5max

  6. 75%

    Gemini 3.1 Prohigh

Median Time

Wall-clock minutes, median across trials. N = 4 trials per model.

  1. 65m

    Claude Sonnet 5max

  2. 50m

    Claude Opus 5max

  3. 37m

    GPT-5.6 Solmax

  4. 31m

    GPT-5.6 Terramax

  5. 26m

    Gemini 3.6 Flashhigh

  6. 18m

    Gemini 3.1 Prohigh

Tool Calls

Tool invocations, median across trials — counted from the trajectories. N = 4 trials per model.

  1. 138

    Claude Sonnet 5max

  2. 70

    Claude Opus 5max

  3. 46

    Gemini 3.6 Flashhigh

  4. 36

    GPT-5.6 Solmax

  5. 30

    GPT-5.6 Terramax

  6. 23

    Gemini 3.1 Prohigh

What the reward cost on this task

Reward vs Cost

Mean reward against mean spend per trial — top-left is more reward for less.

  • Claude Opus 5
  • GPT-5.6 Sol
  • GPT-5.6 Terra
  • Claude Sonnet 5
  • Gemini 3.6 Flash
  • Gemini 3.1 Pro

$0.60Cost / trial$13.21

Tokens Consumed vs Reward

Mean reward against cumulative input tokens per trial — not peak context.

  • Claude Opus 5
  • GPT-5.6 Sol
  • GPT-5.6 Terra
  • Claude Sonnet 5
  • Gemini 3.6 Flash
  • Gemini 3.1 Pro

875kInput tokens / trial29.3M

Verifier × model pass rate

How often each verifier passed, per model. Green is passing, red is failing — a red band across a row is a verifier nothing clears.

VerifierClaude Opus 5maxn=4GPT-5.6 Solmaxn=4GPT-5.6 Terramaxn=4Claude Sonnet 5maxn=4Gemini 3.6 Flashhighn=4Gemini 3.1 Prohighn=4
core (15)
100%100%100%100%100%75%

Why it matters

Coverage must be assessed on usable yield-adjusted quantity net of allocations, and the original attempt's central risk is treating gross or physically-present pounds as usable.

How to pass

Checks that the analysis workbook reports usable on-hand quantity using the formula (On Hand - Allocated) x Yield Factor for inventory lots rather than gross on-hand pounds.

100%75%100%100%0%0%

Why it matters

Country-of-origin restrictions are binding contractual constraints, and the cheapest/fastest options for several critical lines are non-qualifying-origin material that must not be selected.

How to pass

Checks that material melted in China or Russia is excluded for the DFARS programs (Raven, Sable) and the CUST-EU programs (Meridian, Tundra) regardless of price or certificate quality.

100%100%100%100%100%25%

Why it matters

EN 10204 3.1/3.2 certification and full traceability are minimum eligibility gates, and the original attempt risks accepting C-of-C or non-traceable material that is physically attractive.

How to pass

Checks that Certificate-of-Conformance-only lots/quotes and partial-traceability lots are excluded from certified-production coverage.

75%100%100%100%25%0%

Why it matters

Approved-source status and hold status are hard eligibility gates, and otherwise-attractive USA-origin material from these sources must not be planned against requirements.

How to pass

Checks that sources in Suspended, Conditional, or Not Approved status, and material under an open quality/MRB or receiving-inspection hold, are excluded from new commitments.

100%100%100%100%100%0%

Why it matters

The substitution policy is exhaustive and prohibits interchange (e.g., T651 vs T7351, /11 vs /12, bar vs plate vs extrusion), so a model must not silently treat near-match material as covering a callout.

How to pass

Checks that no alloy, temper/condition, product-form, or specification sub-spec substitution is applied beyond same-spec oversize/remnant cutdown.

100%75%100%100%25%75%

Why it matters

Program-priority allocation is an explicit contention rule, and getting it wrong misassigns scarce compliant stock between competing programs.

How to pass

Checks that contested inventory lots usable by more than one requirement are allocated to the higher-priority (lower rank number) program first, with lower-priority shortfalls flowing to new purchase.

100%100%100%100%25%50%

Why it matters

Lead-time feasibility is an explicit gate, and the original attempt risks counting a compliant quote that docks on or after need-by as resolving a requirement on schedule.

How to pass

Checks that a supplier quote is treated as feasible only when its quoted dock/receipt date precedes the requirement need-by date.

100%75%100%100%100%100%

Why it matters

Requirement-level coverage classification is the core analytical output the task asks for and must be complete across all demand lines.

How to pass

Checks that the workbook classifies each of the 26 requirements into a coverage disposition (covered from compliant inventory, partial inventory plus buy, or full new purchase) at the requirement-ID level.

0%0%0%0%0%0%

Why it matters

Requirement-level traceability is an explicit auditability obligation and is exactly where a weaker solution omits the why-rejected evidence chain.

How to pass

Checks that for each at-risk requirement the workbook records the selected inventory lot(s) with usable quantity, the rejected lots with reasons, the selected quote, the rejected quote alternatives with reasons, the residual after inventory, and the resulting purchase quantity and cost.

100%50%100%0%0%0%

Why it matters

Conflating need with MOQ-inflated buy quantity was a defect in the earlier attempt and obscures both true demand and committed spend.

How to pass

Checks that requirement residual quantity is reported separately from the minimum-order-quantity-adjusted purchase quantity, with the excess identified.

100%75%100%50%25%0%

Why it matters

A reconciled, self-consistent committed total was an explicit fix from the earlier attempt, where the memo and PO tab disagreed on the headline figure and shared lines risked double-charging.

How to pass

Checks that the workbook presents a single authoritative total committed new-buy cost with no conflicting totals and a cost chain that reconciles, with shared quote lines not double-counted.

75%75%50%50%25%25%

Why it matters

Clarifying escalation language so that 'every requirement has a feasible path' is not conflated with quality holds awaiting action was an explicit obligation from the earlier revision.

How to pass

Checks that the memo states there is no hard sourcing dead-end while separately listing quality/MRB/process escalations.

100%50%0%25%0%0%

Why it matters

The task's core decision principle is distinguishing usable material from merely cheap/fast/available material, and the memo is where that reasoning must be made legible to leadership.

How to pass

Checks that the memo recommends a sourcing/allocation plan that prioritizes compliance over lowest price or shortest lead time and explicitly identifies rejected cheaper/faster non-compliant options.

75%75%75%25%0%25%

Why it matters

The task forbids inventing options beyond the source packet, and penalizing fabricated content or unrequested side-additions protects against hallucinated uplift that would look like a stronger answer.

How to pass

Checks that the deliverables do not introduce fabricated alloys, tempers, substitutions, approvals, waivers, expedite options, or other material not present in the source files, and do not add materially unsolicited deliverables.

75%50%100%50%25%0%

Why it matters

The shared-PO double-counting failure mode (inflating the committed total by billing one quote line at each requirement's minimum) is exactly where the earlier attempt produced an unreconciled headline figure, and catching it is a fair, materially distinct core check.

How to pass

Checks that the sum of per-requirement residual purchase needs reconciles to the consolidated purchase-order quantities and committed cost, so shared quote lines are not double-counted across the requirements they serve.

secondary (1)
100%100%100%75%100%75%

Why it matters

If the memo asserts headline counts or program restriction classes, they must be accurate and self-consistent; this guards against a confidently-stated but wrong summary rather than mandating an unprompted structure.

How to pass

Checks that any coverage counts or per-program restriction classes the memo chooses to state are internally consistent and correct, without forcing the memo to include specific counts.

Failure modes on this task

140 tagged verifier failures, by the stage they were assigned to. Higher is worse.

Failure stageClaude Opus 5maxGPT-5.6 SolmaxGPT-5.6 TerramaxClaude Sonnet 5maxGemini 3.6 FlashhighGemini 3.1 Prohigh
Deliverable Completion and Structure2 modes5848931
Reasoning and Computation4 modes2314194
Presentation and Communication3 modes136678
Input and Instruction Comprehension2 modes———33—
Grader Error1 mode · the grader—2———3