Run: 2026-07-01-01KWE8RSC4Q921RVQCZTT23YN0

Run Details

Duration:
9.7s
Cost:
$0.004650
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
0.00% 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 Manor's Secret Rain hammered the ancient windows while thunder rolled across the darkened hills beyond Blackwood Manor's gates. Detective Sarah Chen stepped inside, shaking water from her coat before the fireplace's dying embers. Twelve guests remained trapped since the storm severed the only bridge connecting them to town. Lord Pemberton's body lay sprawled across his study floor, blood pooling beneath his silver head. The butler discovered him precisely at midnight, his scream echoing through empty marble corridors upstairs. Sarah examined the scene carefully, noting the overturned chair and scattered papers across his desk. A single wine glass sat untouched, its contents glistening darkly beneath flickering candlelight nearby. Nobody had heard anything unusual, they claimed, despite thin walls throughout this Victorian-era mansion. Six family members stood accused silently, each harboring secrets deadly enough to justify murder. The victim's will mentioned changes made yesterday, changes nobody outside his lawyer supposedly knew. Sarah pulled her notebook out, ready to unravel this tangled web of lies. Outside, the storm intensified further, mirroring the chaos brewing within these ancient walls tonight. Someone here was lying, and she intended to discover exactly who and why.
created_at"2026-07-01T07:19:50.928Z" 7/1/2026, 7:19:50 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2123
moderation_latency145
generation_time9531
tokens_prompt46
tokens_completion350
native_tokens_prompt60
native_tokens_completion453
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.00465
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01Um1sz4PZ697AukdL5fwpD7"
is_byokfalse
latency2123
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-1782890390-9Yb2QRZRPQsKgc7UaRs7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782890390-db2YXkvsWVwv9qASyNcT"
upstream_id"msg_01Um1sz4PZ697AukdL5fwpD7"
total_cost0.00465
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
0.00% Matches word count n/a
neededCleanfalse
sentences14
wordCounts
04
116
215
315
415
515
615
714
814
914
1014
1113
1214
1313