Run: 2026-07-25-01KYCRANV4Q8RXWWMJ0XMH1Y7W

Run Details

Duration:
14.4s
Cost:
$0.028900
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 hammered the greenhouse glass. Inspector Vale hated wet mornings. The body lay among orchids. Someone had arranged her hands. Palms up, fingers gently curled. A white bloom between them. Vale crouched beside the corpse. Her wristwatch had stopped working. Eleven forty, the crystal cracked. Constable Reed cleared his throat. The gardener found her here. He hasn't stopped shaking since. Vale studied the humid air. Nothing smelled like death yet. Only soil, water, and blossoms. Whoever killed Margaret loved flowers. Reed wrote that down carefully. The greenhouse door was locked. Locked from the inside, apparently. Eleven guests waited indoors, watching. One of them was lying. Vale stood and buttoned up. Let's begin with the gardener.
created_at"2026-07-25T13:44:40.557Z" 7/25/2026, 1:44:40 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3988
moderation_latency(null)
generation_time14285
tokens_prompt46
tokens_completion326
native_tokens_prompt60
native_tokens_completion1144
native_tokens_completion_images(null)
native_tokens_reasoning136
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"
usage0.0289
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsmJk9z76KhkYPL4KLT"
is_byokfalse
latency1462
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-1784987080-cxWBZX3buSJ3H5ekOxSx"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987080-3ge8W4Gqgc0B8G171LFA"
upstream_id"msg_011CdNsmJk9z76KhkYPL4KLT"
total_cost0.0289
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
sentences23
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
225