Run: 2026-07-01-01KWE8RSEAVBNVT3NXDCM5DY7H

Run Details

Duration:
13.0s
Cost:
$0.014520
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 hammered the old mansion's windows under a black sky. Detective Sarah Mills stepped inside, shaking water from her coat. The butler stood silently, his face pale and drawn tight. Behind him, a body lay sprawled across the marble floor. Blood pooled slowly, spreading dark across the polished white stone. Nobody moved, waiting for someone to finally speak the truth. Sarah knelt beside the victim, examining the fatal wound closely. A single silver knife glinted beneath the chandelier's dim light. Someone in this house knew exactly what had truly happened. Sarah stood, determined to uncover every hidden secret this night.
created_at"2026-07-01T07:19:50.999Z" 7/1/2026, 7:19:50 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3476
moderation_latency(null)
generation_time12943
tokens_prompt46
tokens_completion278
native_tokens_prompt60
native_tokens_completion1440
native_tokens_completion_images(null)
native_tokens_reasoning120
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"
usage0.01452
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01RwevCDgpPejuBSSNWFHFFy"
is_byokfalse
latency1544
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-1782890391-9wgyZ6nmajude1YmCWxl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782890391-XNiCnpIKskTiKw8aR5vf"
upstream_id"msg_01RwevCDgpPejuBSSNWFHFFy"
total_cost0.01452
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910