Run: 2026-03-06-01KK1GS9SEEB8V4C7VVTN3E3M1

Run Details

Duration:
2.3s
Cost:
$0.000104
Provider:
Inception

Evaluation summary

Score Evaluator
Details Link
84.26% 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 moon hung low over the crumbling manor, casting long shadows across the dusty ballroom, where whispered secrets lingered forever. Suddenly, a bloodcurdling scream pierced the night, and the great clock began to chime through the hall of mist. The guests froze, eyes darting toward the grand staircase where a single candle flickered, casting light over the of of night. At the foot of the stairs, a brass doorknob lay ajar, as if inviting an unseen presence into the dark. The lights flickered once more, plunging the ballroom into darkness, and a cold wind whispered through the corridors of night.
created_at"2026-03-06T12:08:32.309Z" 3/6/2026, 12:08:32 PM
model"inception/mercury"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2288
moderation_latency(null)
generation_time2306
tokens_prompt46
tokens_completion156
native_tokens_prompt47
native_tokens_completion133
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached33
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"
usage0.000104075
router(null)
provider_responses
0
endpoint_id"da1082ea-721e-460e-b330-034ae7aefc7f"
id"chatcmpl-ad4942e4-56af-4674-a2bc-11c4d53b8789"
is_byokfalse
latency42
model_permaslug"inception/mercury"
provider_name"Inception"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1772798912-QTiuYXW59sLeX3sJZmdL"
upstream_id"chatcmpl-ad4942e4-56af-4674-a2bc-11c4d53b8789"
total_cost0.000104075
cache_discount0.000007425
upstream_inference_cost0
provider_name"Inception"

Evaluation details

Result Evaluator Details Meta Data
84.26% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
119
221
320
420