Run: 2026-07-01-01KWE8XHCH00B2A5AD5QDS0Y4A

Run Details

Duration:
9.6s
Cost:
$0.005160
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
0.07% 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
# The Rain Never Lies Detective Sarah Marlowe stood beneath the awning, watching rain pool around the victim's expensive shoes. Marcus Whitfield lay face-down, his silk tie soaked through with blood and rainwater mixing. The alley behind Whitfield Tower smelled of copper and wet garbage, an odd combination she'd never forget. Officer Chen approached carefully, holding his notebook against the downpour, trying to keep evidence dry. "No witnesses," he said, shaking water from his collar, looking thoroughly miserable already. Sarah crouched down, examining the wound angle, noting how precisely someone had planned this. The killer wanted him found exactly here, exactly like this. She glanced upward toward the fortieth floor, where lights still burned in Whitfield's office. Someone up there knew something, and she intended to discover who. The rain intensified suddenly, washing away footprints that might have offered crucial answers. Sarah pulled her coat tighter, feeling the case grow colder with each passing minute. "Get forensics here now," she ordered, standing slowly, her knees protesting the movement. Chen nodded, already dialing, while Sarah studied the building's shadowed entrance one last time. Something about this murder felt personal, deliberate, almost theatrical in its staging and execution. Whoever did this wanted attention, wanted the world to notice Marcus Whitfield's spectacular downfall. Sarah just needed to figure out why, and more importantly, who benefited most.
created_at"2026-07-01T07:22:26.591Z" 7/1/2026, 7:22:26 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
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cancelledfalse
latency1582
moderation_latency(null)
generation_time9583
tokens_prompt46
tokens_completion378
native_tokens_prompt60
native_tokens_completion504
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
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web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.00516
router(null)
provider_responses
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endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01QpXxKSUKTxmZuhRpdSbRSG"
is_byokfalse
latency1582
model_permaslug"anthropic/claude-sonnet-5-20260630"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.17.0; linux; x64))"
http_referer(null)
request_id"req-1782890546-vk6A4eTvzcvMW5e02J7k"
session_id(null)
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api_type"completions"
id"gen-1782890546-257fHQGyOxgeT1rQJPAo"
upstream_id"msg_01QpXxKSUKTxmZuhRpdSbRSG"
total_cost0.00516
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
0.07% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
05
115
214
317
415
513
614
710
814
911
1013
1114
1213
1314
1414
1514
1613