Run: 2026-07-25-01KYCR5DWCB66734M2AKMVZ4XV

Run Details

Duration:
17.7s
Cost:
$0.033650
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hadn't stopped since Tuesday. Inspector Vale hated wet shoes. The body lay face down. Someone had arranged her hands. They rested across her chest. A single lily between them. White petals, still perfectly clean. That detail bothered Vale most. Mud covered everything else here. The garden had swallowed her. Yet the flower stayed pristine. Someone brought it after death. Someone came back to visit. Sergeant Duffy approached with notes. Her name was Margaret Ashcombe. She owned this entire estate. Nine guests stayed here overnight. Nobody heard anything at all. Vale doubted that claim immediately. Someone always hears something eventually. The house watched them silently. Its windows reflected grey sky. Nine people, nine careful stories. One of them was lying. Vale knelt beside the lily. Every signature names its author.
created_at"2026-07-25T13:41:48.563Z" 7/25/2026, 1:41:48 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4087
moderation_latency(null)
generation_time17529
tokens_prompt46
tokens_completion514
native_tokens_prompt60
native_tokens_completion1334
native_tokens_completion_images(null)
native_tokens_reasoning303
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"
usage0.03365
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsYdeb8Eqt2E4wycE8S"
is_byokfalse
latency1853
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-1784986908-a1UU1NA2gOX38zdKiggG"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986908-aa1ImytwPALTeHO0fSGz"
upstream_id"msg_011CdNsYdeb8Eqt2E4wycE8S"
total_cost0.03365
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
sentences26
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
225
235
245
255