Run: 2026-02-20-01KHXQ1SN64G3YJV83EVPYPYT0

Run Details

Duration:
7.8s
Cost:
$0.000534
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
0.91% 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

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 polished, black leather shoes. A scream sliced through the night, sharp as the knife now lodged in the victim’s chest. The body lay sprawled across the alley, limbs twisted like a discarded marionette’s broken strings. Blood mixed with rainwater, swirling into the gutter where the city’s secrets always seemed to drain. Harlow knelt, his gloved fingers brushing the victim’s coat—expensive, tailored, now ruined beyond repair. A single playing card, the Queen of Spades, rested between the corpse’s stiff, pale fingers. The victim’s eyes stared blankly at the sky, reflecting the storm clouds like shattered glass. A witness stood trembling in a doorway, clutching a tattered shawl around her shaking shoulders. “He was alive just minutes ago,” she whispered, her voice cracking like thin ice underfoot. Harlow’s gaze flicked to the rooftops, where a shadow darted just beyond the reach of light. The killer had vanished, but the scent of cigar smoke lingered, thick and cloying in the damp air. A pocket watch, stopped at midnight, lay cracked open near the victim’s outstretched hand. The detective’s mind raced, piecing together fragments of a puzzle no one else could see. This wasn’t just murder—it was a message, written in blood and left for him alone. The storm raged on, indifferent to the life snuffed out in its relentless, cold embrace.
created_at"2026-02-20T14:25:22.609Z" 2/20/2026, 2:25:22 PM
model"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency457
moderation_latency(null)
generation_time7761
tokens_prompt46
tokens_completion417
native_tokens_prompt39
native_tokens_completion343
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.000534
router(null)
provider_responses
0
endpoint_id"fa718841-07ea-4b7e-b8a3-6069545c7e6a"
id"ea99ea8e628c4774b863735506602bdd"
is_byokfalse
latency457
model_permaslug"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597522-Y850IM6BFuLxemTPVzDM"
upstream_id"ea99ea8e628c4774b863735506602bdd"
total_cost0.000534
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
0.91% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
015
115
216
315
416
515
615
715
815
931
1018
1114
1215
1316
1415