Run: 2026-02-20-01KHXQ9W3H9HZX8V35YN20ZQ1A

Run Details

Duration:
2.7s
Cost:
$0.000302
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
72.28% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The grand estate loomed under storm clouds heavy with unseen threats. Rain tapped against windows while shadows stretched across the marble floors. A single candle flickered weakly, casting eerie light upon the portrait. The butler’s stiff posture betrayed nothing as he announced dinner’s arrival. Guests exchanged nervous glances, each wondering who would vanish before dawn broke. Footsteps echoed down the hall, but no one dared turn around. The host’s laughter rang hollow, like glass shattering in silent darkness. A scream pierced the night—then silence swallowed every trembling breath. Blood seeped beneath the study door, staining the rug crimson. Detective Mercer adjusted his gloves, knowing the worst was yet coming.
created_at"2026-02-20T14:29:47.258Z" 2/20/2026, 2:29:47 PM
model"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency324
moderation_latency(null)
generation_time2611
tokens_prompt46
tokens_completion192
native_tokens_prompt39
native_tokens_completion143
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"
usage0.0003016
router(null)
provider_responses
0
endpoint_id"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id"58e68cdc2132451a92f9d792417a759c"
is_byokfalse
latency324
model_permaslug"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597787-MrGso9jFWwXAP2aqBW2E"
upstream_id"58e68cdc2132451a92f9d792417a759c"
total_cost0.0003016
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
72.28% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
111
211
311
412
511
611
711
810
911