Run: 2026-02-20-01KHXPBMCQMM8BRXW82N3RFQCV

Run Details

Duration:
5.0s
Cost:
$0.000224
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
89.63% 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 rain hammered down on the cobblestone streets that night. A lone figure hurried past the flickering streetlamp’s dim glow. Inside the old mansion, shadows danced across cracked, yellowed walls. The grandfather clock struck midnight, its chime echoing through halls. A scream tore through the silence, sharp and filled with terror. Footsteps pounded down the hallway, quick but unsteady in flight. The library door stood ajar, revealing a slumped silhouette. Blood pooled on the Persian rug, dark and spreading like ink. A single glove lay discarded near the victim’s outstretched hand. No one heard the killer slip away into darkness.
created_at"2026-02-20T14:13:16.319Z" 2/20/2026, 2:13:16 PM
model"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2017
moderation_latency(null)
generation_time4941
tokens_prompt46
tokens_completion168
native_tokens_prompt39
native_tokens_completion136
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"
usage0.0002235
router(null)
provider_responses
0
endpoint_id"fa718841-07ea-4b7e-b8a3-6069545c7e6a"
id"e1e9651024794933842c7e43d3f3d629"
is_byokfalse
latency2017
model_permaslug"mistralai/mistral-large-2512" 1/1/2512, 12:00:00 AM
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771596796-99XxtdCOETlGgQkCy6qP"
upstream_id"e1e9651024794933842c7e43d3f3d629"
total_cost0.0002235
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
89.63% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
411
510
69
711
810
99