Run: 2026-02-24-01KJ8WW0EB4SPNWA1ZAZP9BJVK

Run Details

Duration:
28.6s
Cost:
$0.046905
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The body lay crumpled beneath the old oak tree outside. Detective Sarah Mills arrived at the scene before dawn broke. She knelt beside the victim and studied his pale face. No wallet or identification could be found on the man. A single red rose had been placed upon his chest. Its thorns had drawn tiny drops of blood from him. Rain began to fall, threatening to wash away the evidence. She pulled her collar up and surveyed the quiet street. Every house was dark except for one across the road. Behind that window, someone was watching her through the curtains. She made a mental note to knock on that door. But first she needed to understand what happened right here. The killer had left a message carved into the bark. It read simply: you should have kept your mouth shut. This was not a random act of violence at all. Someone in this quiet town had a very dark secret.
created_at"2026-02-24T22:38:43.154Z" 2/24/2026, 10:38:43 PM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1773
moderation_latency150
generation_time28362
tokens_prompt46
tokens_completion479
native_tokens_prompt61
native_tokens_completion1864
native_tokens_completion_images(null)
native_tokens_reasoning258
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"
usage0.046905
router(null)
provider_responses
0
endpoint_id"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
id"96b80862-2891-4be3-8348-5064ba171f80"
is_byokfalse
latency1679
model_permaslug"anthropic/claude-4.6-opus-20260205"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771972723-tan7sEp2GQd0LAJh4YRg"
upstream_id"96b80862-2891-4be3-8348-5064ba171f80"
total_cost0.046905
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
sentences16
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510