Run: 2026-02-24-01KJ8WMZBCQDZJ7CH5NQC6KN2C

Run Details

Duration:
47.7s
Cost:
$0.063858
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 Blackwood Manor was silent on that dark evening. Rain hammered the tall windows like a thousand tiny fists. Inside, the guests had gathered for the annual dinner party. Then someone opened the library door and began to scream. Lord Ashworth lay dead across his grand mahogany writing desk. A thin ivory letter knife was buried in his back. Detective Clara Marsh arrived within the hour, soaking and grim. She surveyed the room with her sharp, calculating gray eyes. Everyone in the manor had a reason to hate him. Only one of them, however, had finally acted upon it.
created_at"2026-02-24T22:34:52.66Z" 2/24/2026, 10:34:52 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency680
moderation_latency153
generation_time47534
tokens_prompt46
tokens_completion470
native_tokens_prompt61
native_tokens_completion4245
native_tokens_completion_images(null)
native_tokens_reasoning326
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"
usage0.063858
router(null)
provider_responses
0
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
id"30b082b2-94bb-45d5-b5a7-e9961a01c310"
is_byokfalse
latency679
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771972492-T9erj89iS7rVsOrILMtu"
upstream_id"30b082b2-94bb-45d5-b5a7-e9961a01c310"
total_cost0.063858
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