Run: 2026-07-25-01KYCR7GZAGS131R4QK01E1Q96

Run Details

Duration:
12.6s
Cost:
$0.021725
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
94.44% 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 facing upward. Orchids framed her pale face. Someone had arranged them carefully. Blood pooled beneath the bench. No footprints marked the soil. Vale crouched and studied her. Her wristwatch had stopped ticking. Eleven seventeen, the previous night. The house held six guests. Each one claimed deep sleep. Sergeant Ames coughed behind him. "The gardener found her, sir." "He is still shaking badly." Vale nodded without looking up. One orchid was clearly missing. The empty pot said everything. Someone took a souvenir home. Rain kept drumming above them.
created_at"2026-07-25T13:42:57.265Z" 7/25/2026, 1:42:57 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5152
moderation_latency(null)
generation_time12218
tokens_prompt46
tokens_completion229
native_tokens_prompt60
native_tokens_completion857
native_tokens_completion_images(null)
native_tokens_reasoning69
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"
usage0.021725
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsdj9d3wAKm7kp1fL6G"
is_byokfalse
latency2567
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-1784986977-iY1XAsuHhs8bNOPacuD7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986977-WVOzubQv02VCq0DymLG6"
upstream_id"msg_011CdNsdj9d3wAKm7kp1fL6G"
total_cost0.021725
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
94.44% Matches word count n/a
neededCleanfalse
sentences18
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
1315
145
155
165
175