Run: 2026-07-25-01KYCR737H0PZ4HM38HR71C081

Run Details

Duration:
17.3s
Cost:
$0.038850
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 the greenhouse glass at seventeen minutes past midnight. Detective Nora Vance had not slept in thirty-one long hours. The body lay among the orchids, arms folded like prayer. The dead man was Gerald Ashgrove, host of tonight's party. No wound showed, no blood, no bruise, no clear cause. Someone had washed his hands and trimmed his fingernails carefully. Nora crouched, studying the pale skin beneath his wedding band. The ring was new, and it fit him too tightly. Behind her, the young constable coughed and apologized for something. "Nobody enters this room again until I say so, understood?" The constable nodded, though his eyes drifted toward the door. Outside, forty guests waited in a ballroom, still wearing masks. One of them had knelt here and prayed over him. Nora stood, brushed soil from her knees, and started counting.
created_at"2026-07-25T13:42:43.197Z" 7/25/2026, 1:42:43 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3740
moderation_latency(null)
generation_time17200
tokens_prompt46
tokens_completion467
native_tokens_prompt60
native_tokens_completion1542
native_tokens_completion_images(null)
native_tokens_reasoning245
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"
usage0.03885
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNscf4nBMfrg2ZCtFTPE"
is_byokfalse
latency1455
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-1784986963-RpL0PIS3ptDal3hcbrSj"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986963-1yOUFKUep3UOEeSsBOfo"
upstream_id"msg_011CdNscf4nBMfrg2ZCtFTPE"
total_cost0.03885
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
sentences14
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310