Run: 2026-03-06-01KK1J3H28ZDGWSY5YKST75J9P

Run Details

Duration:
2.3s
Cost:
$0.000116
Provider:
Inception

Evaluation summary

Score Evaluator
Details Link
83.52% 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 foggy night cloaked the abandoned manor, its ancient stone walls echoing with distant, mournful whispers in the moonlight silently. Inside, the grand ballroom lay empty, save for a single candle flickering beside a polished marble table. A shattered portrait stared down upon the floor, its eyes now blank, reflecting the room's empty silence in the gloom. Suddenly, a bloodcurdling scream pierced the silence, echoing from the hallway towards the foyer as the lights flickered brightly softly. The police arrived moments later, their boots thudding against marble, eyes scanning for any sign of life in the foyer. Detective Marlowe stood at the crime scene, her notebook open, scribbling notes about the shattered portrait on the floor still.
created_at"2026-03-06T12:31:36.015Z" 3/6/2026, 12:31:36 PM
model"inception/mercury"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2188
moderation_latency(null)
generation_time2283
tokens_prompt46
tokens_completion187
native_tokens_prompt47
native_tokens_completion149
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached32
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"
usage0.0001163
router(null)
provider_responses
0
endpoint_id"da1082ea-721e-460e-b330-034ae7aefc7f"
id"chatcmpl-67912a2e-c093-4ffb-bb04-dc1f8c294d98"
is_byokfalse
latency108
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-1772800296-2rr9VwWFuMyuQEuKZ2ta"
upstream_id"chatcmpl-67912a2e-c093-4ffb-bb04-dc1f8c294d98"
total_cost0.0001163
cache_discount0.0000072
upstream_inference_cost0
provider_name"Inception"

Evaluation details

Result Evaluator Details Meta Data
83.52% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
117
220
320
420
520