Run: 2026-07-25-01KYCPVDEWKEHFVDY5E4AJ86RR

Run Details

Duration:
9.0s
Cost:
$0.008225
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 slate roof. Inspector Vance climbed the stairs. The house smelled of turpentine. Nobody had answered her knock. The front door stood open. She counted seven wet footprints. They stopped outside the study. A brass key lay broken. Vance pushed the door inward. Candles guttered in glass sconces. The room held one occupant. He sat facing the window. His hands rested on velvet. A crimson stain spread slowly. Someone had arranged him carefully. His pocket watch showed midnight. It had stopped at ten. The window latch was undone. Wind stirred the heavy curtains. Vance did not touch anything. Instead she studied the desk. Three teacups sat there, drained. Only one bore lipstick traces. A letter burned in ash. She recovered a single word. The word was her name. Downstairs, a floorboard creaked twice. Vance turned off her torch. The house went utterly silent. Then someone began to whistle.
created_at"2026-07-25T13:18:52.195Z" 7/25/2026, 1:18:52 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2100
moderation_latency(null)
generation_time8580
tokens_prompt46
tokens_completion228
native_tokens_prompt60
native_tokens_completion317
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.008225
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNqoAhYGuovhGq4wqvqQ"
is_byokfalse
latency2029
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-1784985532-niQnM4KYI1IysU9AgihP"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784985532-kOfprj7uC5Oz31n8Dq1z"
upstream_id"msg_011CdNqoAhYGuovhGq4wqvqQ"
total_cost0.008225
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
sentences30
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
265
275
285
295