Run: 2026-07-25-01KYCR9J2V57D80F5K9WP1BNVT

Run Details

Duration:
16.6s
Cost:
$0.035525
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 had washed the greenhouse glass clean by half six. Margaret Vane found the body among her prizewinning white orchids. He lay face down, one hand curled around a trowel. The other hand held nothing, though the fingers stayed open. Margaret did not scream, because screaming had never helped anyone. She noted the time, the smell, the mud, the silence. Her nephew Colin had promised to arrive before eight o'clock. This man was not Colin, and that was somehow worse. She crouched, knees complaining, and turned the cold, heavy face. The gardener's eyes looked back at her, mildly surprised still. Behind her, somewhere in the house, a telephone began ringing. It rang eleven times while she decided what to say. Then it stopped, and the greenhouse was very quiet again. Margaret rose, brushed her skirt, and locked the glass door. Whoever telephoned would call again; killers are rarely that patient.
created_at"2026-07-25T13:44:03.942Z" 7/25/2026, 1:44:03 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4654
moderation_latency204
generation_time16149
tokens_prompt46
tokens_completion461
native_tokens_prompt60
native_tokens_completion1409
native_tokens_completion_images(null)
native_tokens_reasoning235
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"
usage0.035525
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsieSF9s2r7V7hNUwLL"
is_byokfalse
latency1404
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-1784987044-G9fwx1lr3NI675UBHBzK"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987044-cwu0yAKx3Ds3GLf3bRat"
upstream_id"msg_011CdNsieSF9s2r7V7hNUwLL"
total_cost0.035525
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
sentences15
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410