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Reasoning · 1 checks · max 800 tokens · benched 2026-09-16

Mistral Large 3 2512 vs Mistral Medium 3.5 vs Mistral Small 4 vs Ministral 3 8B 2512 on count sellable units

Mistral AI models side by side on "Count sellable units": Mistral Small 4 scores 10/10; Mistral Small 4 is the cheapest answer scoring 8+ at $0.26 per 1,000 runs. Outputs, checks, judge reasons, latency and cost.

The prompt every model received

System

Think carefully, then give only the final answer in the requested format.

User

A warehouse receives 3 pallets. Each pallet holds 48 boxes and each box holds 12 units. On inspection, 15% of the boxes are damaged; round the number of damaged boxes down to a whole box. The damaged boxes are discarded. Then 7 undamaged boxes are sent to the quality lab and are not sold. How many units are left to sell? Reply with only the number.

Rubric for the judge: The single correct answer 1392 (144 boxes, 21 damaged, 7 to the lab, 116 x 12).

Side by side

Every cell is one OpenRouter call at temperature 0 with the prompt's token cap and reasoning effort "low" where the model supports it. Cost is usage × the catalogue rate in models.json. Quality is one judge call to anthropic/claude-haiku-4.5 against the prompt's rubric, cached per prompt version.

Mistral Large 3 2512

mistralai/mistral-large-2512

1/10
Latency
584ms
Cost
$6.1e-5
Per 1,000
$0.06

107 in · 5 out · 1 words · checks 0/1

  • exact
1329

Judge: The output of 1329 units is incorrect; the correct answer is 1392 units (144 total boxes - 21 damaged - 7 to lab = 116 boxes × 12 units).

Mistral Medium 3.5

mistralai/mistral-medium-3-5

10/10
Latency
492ms
Cost
$0.00242
Per 1,000
$2.42

119 in · 299 out (229 reasoning) · 1 words · checks 1/1

  • exact
1392

Judge: The output matches the correct answer of 1392 units exactly, provided in the required format of a bare number only.

Mistral Small 4

mistralai/mistral-small-2603

10/10
top judge scorecheapest scoring 8+
Latency
525ms
Cost
$0.00026
Per 1,000
$0.26

119 in · 404 out (252 reasoning) · 1 words · checks 1/1

  • exact
1392

Judge: The output matches the correct answer of 1392 units exactly, provided in the required format of a bare number only.

Ministral 3 8B 2512

mistralai/ministral-8b-2512

1/10
Latency
414ms
Cost
$1.7e-5
Per 1,000
$0.02

107 in · 6 out · 1 words · checks 0/1

  • exact
10080

Judge: The output of 10080 is incorrect; the correct answer is 1392 units (calculated as: 144 total boxes - 21 damaged - 7 to lab = 116 boxes × 12 units = 1392).

Frequently asked

What does this prompt test?

Reasoning: The single correct answer 1392 (144 boxes, 21 damaged, 7 to the lab, 116 x 12). The deterministic checks are exact.

Which model should I pick for this task?

If the judge's bar of 8/10 is good enough for you, Mistral Small 4 at $0.26 per 1,000 runs. If you need the top score, Mistral Small 4 at $0.26 per 1,000 runs.

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