Run: 2026-04-24-01KPZV0F55DN5HBPMJXRCD7QZQ

Run Details

Duration:
5.1s
Cost:
$0.007500
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 pelted the cobblestone streets. Detective Hollis lit his cigarette. The mansion loomed in darkness. One window glowed upstairs still. A scream shattered the silence. Hollis dropped his smoke instantly. He sprinted toward the door. The butler stood frozen there. Blood dripped from his hands. "She's dead," the butler whispered. Hollis pushed past him quickly. The staircase creaked under pressure. Each step felt impossibly heavy. Candlelight flickered along the walls. Portraits watched his every move. The bedroom door hung open. Lady Ashcroft lay motionless inside. A silver dagger pinned her. Her eyes stared at nothing. Hollis knelt beside the body. Something glinted near her palm. A locket, still warm somehow. He opened it with care. Inside was his own photograph.
created_at"2026-04-24T13:31:31.376Z" 4/24/2026, 1:31:31 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1611
moderation_latency(null)
generation_time4980
tokens_prompt46
tokens_completion195
native_tokens_prompt65
native_tokens_completion287
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"
usage0.0075
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"cef88896-eef6-45b6-b891-bfdce4544c32"
is_byokfalse
latency1611
model_permaslug"anthropic/claude-4.7-opus-20260416"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777037491-y2ADgdjPmSektTRC6axw"
session_id(null)
api_type"completions"
id"gen-1777037491-t7ux8qfoOriYyL8ufgjI"
upstream_id"cef88896-eef6-45b6-b891-bfdce4544c32"
total_cost0.0075
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences24
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