Run: 2026-07-25-01KYCPMS561STQHBY84APM6WNE

Run Details

Duration:
9.3s
Cost:
$0.007975
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
98.15% 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 greenhouse glass like fingers demanding to be admitted. Inspector Alma Reyes stepped over the threshold and smelled copper. The orchids had been arranged in a circle around him. Gerald Pemberton lay face down among the crushed white petals. His right hand still clutched a pair of pruning shears. The blades were clean, which struck her as remarkably strange. Someone had wiped them, or he had never used them. Behind her, the constable coughed and looked anywhere but down. "Housekeeper found him at six," he said, consulting his notebook. "Door was locked from inside, and the key is missing." Alma crouched and studied the soil beneath the dead man. Four shallow depressions marked the earth, evenly spaced and deliberate. Not footprints, she thought, but something heavier had stood there. The rain kept knocking, patient as a creditor at midnight.
created_at"2026-07-25T13:15:14.477Z" 7/25/2026, 1:15:14 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1795
moderation_latency(null)
generation_time9173
tokens_prompt46
tokens_completion228
native_tokens_prompt60
native_tokens_completion307
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"
usage0.007975
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNqX7x9M7N2kCfnpgU8z"
is_byokfalse
latency1795
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784985314-oA1SDUGl0xv1PY5ydoHa"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784985314-s5zbeCGpPb1UniaTD9lf"
upstream_id"msg_011CdNqX7x9M7N2kCfnpgU8z"
total_cost0.007975
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
98.15% Matches word count n/a
neededCleanfalse
sentences14
wordCounts
011
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310