Run: 2026-02-18-01KHQ94S7169C50G20KASQ70JH

Run Details

Duration:
5.3s
Cost:
$0.002907
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
96.54% 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 lighthouse stood silent against the stormy night sky. Detective Clara Moss arrived alone at the crumbling iron gate. Rain hammered the cobblestones beneath her worn leather boots. She pushed the gate open with a reluctant gloved hand. Inside, a single candle flickered in the highest circular window. The beam of her flashlight swept across the wet ground. Something dark and still lay near the base below. Clara stepped closer, her breath caught tight in her throat. The body of a man was sprawled face down there. His expensive coat was soaked completely through with cold rain. A gold pocket watch lay open just beside his hand. The time it displayed had stopped at precisely half past. Clara reached for her radio but found only crackling static. She knelt beside the man and studied his pale neck. Two deep marks told her everything she already feared tonight.
created_at"2026-02-18T02:26:59.376656+00:00" 2/18/2026, 2:26:59 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency559
moderation_latency209
generation_time4977
tokens_prompt46
tokens_completion219
native_tokens_prompt44
native_tokens_completion185
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.002907
router(null)
provider_responses
0
id"926d4cea-0227-4dec-9965-1d9ebb063aab"
status200
is_byokfalse
latency557
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381613-cMWyARZxYWdXNCd39Bn3"
upstream_id"926d4cea-0227-4dec-9965-1d9ebb063aab"
total_cost0.002907
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"

Evaluation details

Result Evaluator Details Meta Data
96.54% Matches word count n/a
neededCleanfalse
sentences15
wordCounts
010
110
29
310
410
510
69
710
810
910
1010
1110
1210
1310
1410