EKWbench

task_116Retail trade

18 verifiers · 15 core · 3 secondary · 18 LLM-graded

TaxonomyRetail tradeGeneral and operations managers

Start with all trials for auto-written insights, or select a single trial to drill into its verifier results, trajectory, and workspace changes.

Claude Opus 5claude-code · max

Mean reward

65.8%

All trials

Across 4 trials on this task, reward ran from 63% to 70% — 0 of 4 cleared every core verifier.

  • 11.0 / 15avg core verifiers passed
  • 1.3 / 3avg secondary passed
  • 136avg turns
  • 81avg tool calls
  • $10.71avg cost
  • 41mavg time

Summary · Claude Opus 5

Claude Opus 5 passed none of its 4 trials. Failures cluster on execution (4/4 trials).

Common pattern

execution, capacity_discipline and core_final_facings and 1 more failed in every unsuccessful trial; what else broke varies across the other 4 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of Claude Opus 5's failures on this task were classified as Allocation or Selection Plan Incorrect — 8 verifiers across 4 of 4 trials.

Per-trial notes

  • Trial 01Missed 4 of 15 core — scope_control, execution and core_final_facings and 1 more, plus 2 secondary.
  • Trial 02Missed 4 of 15 core — traffic_profit, execution and core_final_facings and 1 more, plus 2 secondary.
  • Trial 03Missed 5 of 15 core — scope_control, execution and core_final_facings and 2 more, plus 1 secondary.
  • Trial 04Missed 3 of 15 core — execution, core_final_facings and capacity, plus 2 secondary.

GPT-5.6 Solcodex · max

Mean reward

69%

All trials

Across 4 trials on this task, reward ran from 55% to 83% — 0 of 4 cleared every core verifier.

  • 10.8 / 15avg core verifiers passed
  • 2.0 / 3avg secondary passed
  • 63avg turns
  • 49avg tool calls
  • $4.97avg cost
  • 28mavg time

Summary · GPT-5.6 Sol

GPT-5.6 Sol passed none of its 4 trials. Failures cluster on traffic_profit (4/4 trials).

Common pattern

traffic_profit and capacity failed in every unsuccessful trial; what else broke varies across the other 6 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of GPT-5.6 Sol's failures on this task were classified as Quantity, Cost, Capacity, or Rate Calculation Wrong — 7 verifiers across 4 of 4 trials.

Per-trial notes

  • Trial 01Missed 4 of 15 core — traffic_profit, execution and core_final_facings and 1 more, plus 1 secondary.
  • Trial 02Missed 6 of 15 core — traffic_profit, scope_control and execution and 3 more, plus 2 secondary.
  • Trial 03Missed 3 of 15 core — traffic_profit, scope_control and capacity.
  • Trial 04Missed 4 of 15 core — traffic_profit, execution and core_final_facings and 1 more, plus 1 secondary.

GPT-5.6 Terracodex · max

Mean reward

59.2%

All trials

Across 4 trials on this task, reward ran from 49% to 63% — 0 of 4 cleared every core verifier.

  • 9.5 / 15avg core verifiers passed
  • 2.0 / 3avg secondary passed
  • 50avg turns
  • 39avg tool calls
  • $1.57avg cost
  • 21mavg time

Summary · GPT-5.6 Terra

GPT-5.6 Terra passed none of its 4 trials. Failures cluster on execution (4/4 trials).

Common pattern

execution, core_final_facings and capacity failed in every unsuccessful trial; what else broke varies across the other 7 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of GPT-5.6 Terra's failures on this task were classified as Allocation or Selection Plan Incorrect — 10 verifiers across 4 of 4 trials.

Per-trial notes

  • Trial 01Missed 7 of 15 core — sushi_route, traffic_profit and execution and 4 more, plus 1 secondary.
  • Trial 02Missed 5 of 15 core — capacity, execution and core_final_facings and 2 more, plus 1 secondary.
  • Trial 03Missed 5 of 15 core — capacity, traffic_profit and execution and 2 more, plus 1 secondary.
  • Trial 04Missed 5 of 15 core — traffic_profit, execution and core_final_facings and 2 more, plus 1 secondary.

Claude Sonnet 5claude-code · max

Mean reward

51%

All trials

Across 4 trials on this task, reward ran from 42% to 59% — 0 of 4 cleared every core verifier.

  • 8.0 / 15avg core verifiers passed
  • 1.5 / 3avg secondary passed
  • 187avg turns
  • 99avg tool calls
  • $8.53avg cost
  • 44mavg time

Summary · Claude Sonnet 5

Claude Sonnet 5 passed none of its 4 trials. Failures cluster on traffic_profit (4/4 trials).

Common pattern

traffic_profit, execution and capacity_discipline and 2 more failed in every unsuccessful trial; what else broke varies across the other 9 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of Claude Sonnet 5's failures on this task were classified as Quantity, Cost, Capacity, or Rate Calculation Wrong — 10 verifiers across 4 of 4 trials.

Per-trial notes

  • Trial 01Missed 8 of 15 core — vegetarian_role, traffic_profit and execution and 5 more, plus 2 secondary.
  • Trial 02Missed 7 of 15 core — traffic_profit, trust_hierarchy and execution and 4 more, plus 1 secondary.
  • Trial 03Missed 6 of 15 core — traffic_profit, scope_control and execution and 3 more, plus 1 secondary.
  • Trial 04Missed 7 of 15 core — traffic_profit, execution and workbook_structure and 4 more, plus 2 secondary.

Gemini 3.6 Flashgemini-cli · high

Mean reward

43%

All trials

Across 4 trials on this task, reward ran from 37% to 49% — 0 of 4 cleared every core verifier.

  • 7.0 / 15avg core verifiers passed
  • 1.0 / 3avg secondary passed
  • 99avg turns
  • 50avg tool calls
  • $1.24avg cost
  • 25mavg time

Summary · Gemini 3.6 Flash

Gemini 3.6 Flash passed none of its 4 trials. Failures cluster on traffic_profit (4/4 trials).

Common pattern

traffic_profit, execution and capacity_discipline and 5 more failed in every unsuccessful trial; what else broke varies across the other 4 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of Gemini 3.6 Flash's failures on this task were classified as Allocation or Selection Plan Incorrect — 10 verifiers across 4 of 4 trials.

Per-trial notes

  • Trial 01Missed 8 of 15 core — traffic_profit, trust_hierarchy and scope_control and 5 more, plus 2 secondary.
  • Trial 02Missed 9 of 15 core — sushi_route, traffic_profit and trust_hierarchy and 6 more, plus 2 secondary.
  • Trial 03Missed 7 of 15 core — traffic_profit, execution and workbook_structure and 4 more, plus 2 secondary.
  • Trial 04Missed 8 of 15 core — sushi_route, traffic_profit and execution and 5 more, plus 2 secondary.

Gemini 3.1 Progemini-cli · high

Mean reward

22.5%

All trials

Across 4 trials on this task, reward ran from 0% to 36% — 0 of 4 cleared every core verifier.

  • 3.8 / 15avg core verifiers passed
  • 0.3 / 3avg secondary passed
  • 23avg turns
  • 17avg tool calls
  • $0.35avg cost
  • 7mavg time

Summary · Gemini 3.1 Pro

Gemini 3.1 Pro passed none of its 4 trials. Failures cluster on capacity (4/4 trials).

Common pattern

capacity, traffic_profit and trust_hierarchy and 7 more failed in every unsuccessful trial; what else broke varies across the other 8 verifiers. One reproducible defect, with noise around it.

Why they broke

Most of Gemini 3.1 Pro's failures on this task were classified as Required Evidence Fields or Rows Omitted — 11 verifiers across 3 of 4 trials.

Per-trial notes

  • Trial 01Missed 12 of 15 core — sushi_route, capacity and vegetarian_role and 9 more, plus 2 secondary.
  • Trial 02Missed 9 of 15 core — capacity, seasonal and traffic_profit and 6 more, plus 3 secondary.
  • Trial 03Missed 9 of 15 core — capacity, traffic_profit and trust_hierarchy and 6 more, plus 3 secondary.
  • Trial 04Missed 15 of 15 core — sushi_route, capacity and vegetarian_role and 12 more, plus 3 secondary.