Run: 2026-10-07-01M4AT71BHS9Y5ZYGR62JN3NAD

Run Details

Duration:
1.7s
Cost:
$0.001059
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
92.22% 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 mansion loomed under a stormy, moonless night sky. Detective Cole adjusted his coat as rain began to fall. A scream echoed through the halls, sharp and terrifyingly brief. He rushed inside, his boots clicking on the marble floor. The chandelier swayed, casting eerie shadows across the walls. A body lay sprawled near the fireplace, motionless and pale. Blood pooled around the victim, dark and disturbingly still. The butler stood frozen, his face drained of all color. A shattered vase lay nearby, its pieces scattered like clues. Cole knelt beside the body, his mind already racing.
created_at"2026-10-07T09:13:20.505Z" 10/7/2026, 9:13:20 AM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency346
moderation_latency(null)
generation_time1689
tokens_prompt46
tokens_completion152
native_tokens_prompt51
native_tokens_completion131
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.001059
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791364400-QZiuBwFXelZQv3vnejeR"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791364400-Rcd7GwBOH5yLipzDEYMP"
upstream_id"523f342211a548799eb30b5363c02770"
provider_responses
0
endpoint_id"d21d316f-d540-4718-b36e-3beff85d0cf9"
id"523f342211a548799eb30b5363c02770"
is_byokfalse
latency346
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.001059
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
92.22% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
49
510
69
710
810
99