Run: 2026-07-01-01KWE9FGFMCH0QF7QXEBEC090D

Run Details

Duration:
13.7s
Cost:
$0.015810
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 against the old mansion's windows late that night. Detective Sarah Miles arrived just after the storm had begun. The old butler stood pale and silent at the door. Something terrible had happened inside, he finally whispered very quietly. Lord Ashford lay dead upon his own study's marble floor. A single candle flickered beside his lifeless, cold, still body. Sarah knelt down slowly, examining the wound with careful precision. This was clearly no accident, she murmured under her breath. The killer, she suspected, was still somewhere in the house. Outside, thunder rolled loudly as the mystery began to unfold.
created_at"2026-07-01T07:32:15.488Z" 7/1/2026, 7:32:15 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3593
moderation_latency(null)
generation_time13664
tokens_prompt46
tokens_completion286
native_tokens_prompt60
native_tokens_completion1569
native_tokens_completion_images(null)
native_tokens_reasoning129
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"
usage0.01581
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01KGKwHDpHSn3pfFyhwepVAS"
is_byokfalse
latency1592
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-1782891135-3KHtgoqGKtjCoQHhR65g"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891135-BquhviYvvodWJVfeBoOJ"
upstream_id"msg_01KGKwHDpHSn3pfFyhwepVAS"
total_cost0.01581
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