Run: 2026-02-24-01KJ8VKNZV0QR2RKN4T7Z5H20Y

Run Details

Duration:
43.9s
Cost:
$0.090080
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
100.00% 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 body lay crumpled at the foot of the grand staircase, its pale hands still clutching a torn bloodstained letter. Detective Clara Marsh ducked under the yellow crime scene tape and stepped into the cold marble foyer of Ashworth Manor. The chandelier above cast fractured light across the dead man's face, revealing an expression frozen somewhere between shock and rage. She knelt beside the victim and noticed the faint smell of almonds drifting up from his slightly parted blue lips. No one had heard a thing, or so every single resident of this sprawling estate was now desperate to claim. The victim was Edmund Ashworth, the patriarch of one of the wealthiest and most secretive families in the entire county. His wife stood at the top of the staircase, perfectly composed, watching the detective work with unsettling calm and stillness. Clara looked up at her and knew immediately that this woman was hiding something dark beneath her elegant porcelain mask. Rain hammered against the tall windows as thunder rolled across the hills, sealing every suspect inside the house with her. She pulled out her notebook, clicked her pen, and silently vowed that the dead man's secrets would not stay buried.
created_at"2026-02-24T22:16:41.733Z" 2/24/2026, 10:16:41 PM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1613
moderation_latency154
generation_time43708
tokens_prompt46
tokens_completion584
native_tokens_prompt61
native_tokens_completion3591
native_tokens_completion_images(null)
native_tokens_reasoning265
native_tokens_cached0
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"
usage0.09008
router(null)
provider_responses
0
endpoint_id"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
id"61a7d674-4e28-4327-a661-2efe911f87b3"
is_byokfalse
latency1520
model_permaslug"anthropic/claude-4.6-opus-20260205"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771971401-DZ70W2tpNqmeIVVW1t2E"
upstream_id"61a7d674-4e28-4327-a661-2efe911f87b3"
total_cost0.09008
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
020
120
220
320
420
520
620
720
820
920