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

Kimi K3 vs Kimi K2.7 Code vs Kimi K2.6 vs Kimi K2.5 on count sellable units

Moonshotai models side by side on "Count sellable units": Kimi K2.7 Code scores 10/10; Kimi K2.7 Code is the cheapest answer scoring 8+ at $0.50 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.

Kimi K3

moonshotai/kimi-k3

10/10
Latency
1.8s
Cost
$0.00150
Per 1,000
$1.50

196 in · 91 out (80 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.

Kimi K2.7 Code

moonshotai/kimi-k2.7-code

10/10
top judge scorecheapest scoring 8+
Latency
444ms
Cost
$0.00050
Per 1,000
$0.50

108 in · 122 out (94 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.

Kimi K2.6

moonshotai/kimi-k2.6

10/10
Latency
349ms
Cost
$0.00148
Per 1,000
$1.48

108 in · 357 out (353 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.

Kimi K2.5

moonshotai/kimi-k2.5

10/10
Latency
993ms
Cost
$0.00104
Per 1,000
$1.04

108 in · 439 out (436 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.

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, Kimi K2.7 Code at $0.50 per 1,000 runs. If you need the top score, Kimi K2.7 Code at $0.50 per 1,000 runs.

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