Run: 2026-09-25-01M3CKHYCJHB7JW6YMHMM882F0

Run Details

Duration:
1.6s
Cost:
$0.001134
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
84.45% 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 bloodcurdling. Guests froze, their laughter dying in an instant of dread. The lights flickered once, then plunged the room into darkness. A thud followed, heavy and final, from the study. Cole lit a match, its glow revealing a pale, trembling face. The butler stood stiff, clutching a silver tray with both hands. Blood dripped from the tray’s edge, dark and unmistakable. Somewhere in the house, a clock struck midnight with a chime.
created_at"2026-09-25T15:39:44.928Z" 9/25/2026, 3:39:44 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency334
moderation_latency(null)
generation_time1522
tokens_prompt46
tokens_completion153
native_tokens_prompt51
native_tokens_completion141
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"
usage0.001134
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350784-yq0eEaxmYWKgDdeWfcFa"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350784-ZN7Zezu80qx3Hy6Qe56o"
upstream_id"8e1de3df1db34c50879d372ad2b49d20"
provider_responses
0
endpoint_id"d21d316f-d540-4718-b36e-3beff85d0cf9"
id"8e1de3df1db34c50879d372ad2b49d20"
is_byokfalse
latency334
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.001134
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
84.45% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
29
310
410
59
611
711
89
911