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Run: 2026-02-20-01KHXQ6DCFKFJESKHRRANKS5JN
Run Details
Model:
Mistral Large 3
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
7.8s
Cost:
$0.000555
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
1.50%
Matches word count
(details)
Model input
User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.
Model response
Messages
Meta
AI
The rain hammered against the cobblestones, turning the gaslight’s glow into a hazy, golden smear. Detective Harlow adjusted his hat, watching the water pool around his scuffed, leather boots with quiet disdain. A scream sliced through the night, sharp as broken glass, freezing him mid-step near the alley’s mouth. The body lay sprawled beneath the flickering streetlamp, limbs twisted like a discarded marionette’s strings. Blood, black in the dim light, seeped into the cracks between the stones, tracing a macabre map. Harlow knelt, gloved fingers brushing the victim’s coat—fine wool, now ruined by the storm’s cruel touch. A playing card, the ace of spades, rested near the corpse, edges curled from the damp air. The victim’s face was frozen in surprise, lips parted as if to whisper a final, unheard secret. A shadow shifted at the alley’s end, just beyond the reach of the sputtering, dying lamplight. Harlow’s hand drifted to his revolver, eyes narrowing as the figure melted into the downpour’s relentless curtain. The air smelled of wet iron and something sweeter—perfume, perhaps, or the ghost of a lie. A distant clock tower chimed midnight, its hollow notes swallowed by the storm’s hungry, howling breath. The victim’s pocket watch had stopped at 11:47, its hands locked in a moment stolen by violence. Harlow exhaled, his breath curling like smoke, as the first clue whispered its silent, deadly promise. Somewhere in the city, a door clicked shut, sealing the killer’s escape into the storm’s embrace.
created_at
"2026-02-20T14:27:53.881Z"
2/20/2026, 2:27:53 PM
model
"mistralai/mistral-large-2512"
1/1/2512, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
348
moderation_latency
(null)
generation_time
7701
tokens_prompt
46
tokens_completion
416
native_tokens_prompt
39
native_tokens_completion
357
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
16
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"stop"
usage
0.000555
router
(null)
provider_responses
0
endpoint_id
"fa718841-07ea-4b7e-b8a3-6069545c7e6a"
id
"3e2eedb1443f4dd9aa00c77df2370052"
is_byok
false
latency
348
model_permaslug
"mistralai/mistral-large-2512"
1/1/2512, 12:00:00 AM
provider_name
"Mistral"
status
200
api_type
"completions"
id
"gen-1771597673-CS7d0wwsap9t9mZWQu9W"
upstream_id
"3e2eedb1443f4dd9aa00c77df2370052"
total_cost
0.000555
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
1.50%
Matches word count
n/a
neededClean
false
sentences
15
wordCounts
0
15
1
17
2
18
3
15
4
17
5
17
6
17
7
17
8
16
9
17
10
17
11
16
12
17
13
16
14
16