Run: 2026-07-01-01KWE9BDZK2JC2SYW30MVAG1C9

Run Details

Duration:
12.8s
Cost:
$0.014030
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 hard against the mansion's windows, cold and relentless. Detective Mara Voss stood silently within the grand marble foyer. A body lay sprawled beneath the crystal chandelier's soft glow. Lord Ashford's eyes stared blankly toward the painted ceiling above. Nobody in the household claimed to have heard anything unusual. Mara knelt down, examining the wound just below his ribs. A single silver key lay clutched within his cold fingers. Outside, thunder rolled ominously across the darkened, stormy countryside sky. Someone inside this house, she thought grimly, was lying tonight. The killer, Mara knew, was still somewhere within these walls.
created_at"2026-07-01T07:30:01.857Z" 7/1/2026, 7:30:01 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3614
moderation_latency(null)
generation_time12768
tokens_prompt46
tokens_completion283
native_tokens_prompt60
native_tokens_completion1391
native_tokens_completion_images(null)
native_tokens_reasoning118
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"
usage0.01403
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01MB14Txs7rb2UgRF4QRBUMZ"
is_byokfalse
latency1569
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-1782891001-AvfnIzZRVfvVhpB2VmOl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891001-aZ92jwBHkNryAq1w4SY8"
upstream_id"msg_01MB14Txs7rb2UgRF4QRBUMZ"
total_cost0.01403
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