Run: 2026-07-01-01KWEA33BAJ04XQQ62H5FX9AR6

Run Details

Duration:
11.2s
Cost:
$0.012150
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
Rain fell hard against the old mansion's cracked windows tonight. Detective Sarah Miles stepped carefully across the creaking wooden floor. A body lay motionless beside the grand marble fireplace there. Blood pooled slowly beneath the victim's cold, lifeless right hand. Nobody had heard a single scream throughout the entire night. Sarah crouched down, examining the strange bruises on his neck. Something metallic glinted faintly beneath the antique oak writing desk. She knew this case would prove far more complicated tonight.
created_at"2026-07-01T07:42:57.399Z" 7/1/2026, 7:42:57 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3897
moderation_latency(null)
generation_time11127
tokens_prompt46
tokens_completion209
native_tokens_prompt60
native_tokens_completion1203
native_tokens_completion_images(null)
native_tokens_reasoning76
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.01215
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01BmXAD2tTaKPKgbXQGsNSCg"
is_byokfalse
latency1794
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-1782891777-vdhGQBozRSWS6u9P5tLE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891777-wTFkWTlj4mL5WsOg4s4U"
upstream_id"msg_01BmXAD2tTaKPKgbXQGsNSCg"
total_cost0.01215
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
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710