Run: 2026-02-24-01KJ8VJD98QPDV1ED267X8JSBG

Run Details

Duration:
57.2s
Cost:
$0.087378
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 old mansion stood completely silent beneath a pale moon. Icy rain had soaked each cobblestone leading to the door. Detective Walsh arrived at precisely half past twelve that night. She stepped over the yellow police tape without a word. The body of Lord Ashworth lay completely still and cold. His right hand still clutched a nearly empty wine glass. A single red rose petal rested beside his pale cheek. Walsh knelt down and studied the scene with quiet intensity. Someone inside this very house had just committed a murder. The only question was which of them had done it.
created_at"2026-02-24T22:16:00.05Z" 2/24/2026, 10:16:00 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency731
moderation_latency172
generation_time56941
tokens_prompt46
tokens_completion656
native_tokens_prompt61
native_tokens_completion5813
native_tokens_completion_images(null)
native_tokens_reasoning511
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"
usage0.087378
router(null)
provider_responses
0
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
id"f9a9b041-d8ba-465d-a7e8-f75ba068e238"
is_byokfalse
latency730
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771971360-ln5zkkrxd694QTsvsGws"
upstream_id"f9a9b041-d8ba-465d-a7e8-f75ba068e238"
total_cost0.087378
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
010
110
210
310
410
510
610
710
810
910