Run: 2026-09-25-01M3CKAGZ91RW2J7QHZ52DAAEH

Run Details

Duration:
1.9s
Cost:
$0.001112
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
7.14% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The grand library fell silent as the clock struck midnight with an eerie, echoing chime through dusty shelves. Detective Marlowe adjusted his coat, eyes scanning the shadowed corners where secrets lurked like restless ghosts. A single candle flickered on the mahogany desk, its light revealing a letter stained with crimson ink. The victim lay sprawled across the Persian rug, a silver dagger buried deep in his motionless chest. Whispers of betrayal hung in the air, each word heavy with suspicion and unspoken accusations among the guests. Outside, the storm raged violently, its howling winds masking the faint sound of retreating footsteps in the hall.
created_at"2026-09-25T15:35:41.81Z" 9/25/2026, 3:35:41 PM
model"mistralai/mistral-medium-3.5-20260430"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency375
moderation_latency(null)
generation_time1842
tokens_prompt46
tokens_completion168
native_tokens_prompt51
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.0011115
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790350541-yvDbfuQMkO6ANHSfj74G"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790350541-ebh7Zf39FXX8ENoDEM2u"
upstream_id"72fa46b099f443708b08526f4805c378"
provider_responses
0
endpoint_id"38ef23a9-5cb3-46fa-85ec-7aed174f04eb"
id"72fa46b099f443708b08526f4805c378"
is_byokfalse
latency375
model_permaslug"mistralai/mistral-medium-3.5-20260430"
provider_name"Mistral"
status200
total_cost0.0011115
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
7.14% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
018
116
217
317
418
518