Run: 2026-02-24-01KJ8V5EJZ2R929PQWMKAKPF1W

Run Details

Duration:
1m 50s
Cost:
$0.187923
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
Rain fell hard on Ashwood Manor as Detective Clara Hess slowly stepped out of her black car and looked up. The old house rose five stories high against a bruised and angry sky that seemed ready to swallow it whole. Someone had called her from inside those walls barely six hours ago, and then the phone line had gone dead. The caller had whispered that a man lay dead inside the manor before the signal became nothing but cold static. Clara pulled her dark coat tight against the cold rain and walked with careful deliberate steps toward the iron gate. The iron gate swung open on its own the very moment she arrived, and she felt her stomach drop cold. There, laid out on the front steps, was a body face down with one pale hand reaching toward the door. She knelt beside him in the cold rain and felt the heavy, unmistakable weight of nĂ¥got deeply wrong settle in. The man had clearly been dead for several hours, she guessed, and she would wait for the coroner to confirm. Around his neck, a thin red cord had been pulled tight, tied in a knot no careless hand could make. Clara stood, looked up at the manor's dark and silent face, and knew she had just begun a dangerous hunt.
created_at"2026-02-24T22:08:55.402Z" 2/24/2026, 10:08:55 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency735
moderation_latency223
generation_time109164
tokens_prompt46
tokens_completion936
native_tokens_prompt61
native_tokens_completion12516
native_tokens_completion_images(null)
native_tokens_reasoning640
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"
usage0.187923
router(null)
provider_responses
0
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
id"39402da4-da54-4375-b5c3-40f7839ad293"
is_byokfalse
latency734
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771970935-gjakOQOdg0UPzTHcIyJW"
upstream_id"39402da4-da54-4375-b5c3-40f7839ad293"
total_cost0.187923
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
sentences11
wordCounts
020
120
220
320
420
520
620
720
820
920
1020