Run: 2026-02-20-01KHXQ9FQE62GTH1762CCDE444

Run Details

Duration:
2.7s
Cost:
$0.000292
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
94.82% 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, shadows stretching long. Rain tapped against the windows while guests whispered nervously inside. A single candle flickered as the butler locked every door. The host’s laughter echoed strangely before falling into dead silence. Blood seeped slowly across the Persian rug’s intricate golden pattern. Someone screamed, but the sound was swallowed by thunder’s roar. Detective Mercer adjusted his gloves, eyes scanning each suspicious face carefully. The victim’s pocket watch lay shattered near the fireplace’s cold ashes. Footsteps faded down the hallway, leaving only questions behind them. Mercer knelt, noticing a monogrammed handkerchief clutched in stiff fingers.
created_at"2026-02-20T14:29:34.584Z" 2/20/2026, 2:29:34 PM
model"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency235
moderation_latency(null)
generation_time2597
tokens_prompt46
tokens_completion189
native_tokens_prompt39
native_tokens_completion138
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"
usage0.0002916
router(null)
provider_responses
0
endpoint_id"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id"4db7435c29ec4e5298e7ac582cbec239"
is_byokfalse
latency235
model_permaslug"mistralai/mistral-medium-3.1" 3/1/2001, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771597774-WYaqfj4FTkQiOOwK9th3"
upstream_id"4db7435c29ec4e5298e7ac582cbec239"
total_cost0.0002916
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
94.82% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
611
711
810
910