Run: 2026-04-24-01KPZV8PJR5H5QXMT2R9YWG347

Run Details

Duration:
3.9s
Cost:
$0.006025
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain pelted the cobblestones outside the old Ashcroft family estate. Detective Miriam Vale stepped carefully across the slick stone walkway. The front door hung open, swaying on rusted iron hinges. Inside, candles flickered despite the storm raging beyond the windows. A woman lay sprawled across the marble floor, utterly motionless. Blood pooled beneath her, staining the pale silk evening gown. Miriam knelt beside the body and studied the victim's face. Lady Ashcroft had been dead for less than an hour. Her left hand clutched a torn page from someone's diary. Five guests waited upstairs, each hiding a very dangerous secret.
created_at"2026-04-24T13:36:01.128Z" 4/24/2026, 1:36:01 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1016
moderation_latency(null)
generation_time3778
tokens_prompt46
tokens_completion158
native_tokens_prompt65
native_tokens_completion228
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"
usage0.006025
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"75b05aa5-2543-46f5-af32-753fb0ba2f6b"
is_byokfalse
latency1015
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-1777037761-4fLeuO243EKg7OMGwld7"
session_id(null)
api_type"completions"
id"gen-1777037761-ayA2BRQ6gt37UDFYvu8w"
upstream_id"75b05aa5-2543-46f5-af32-753fb0ba2f6b"
total_cost0.006025
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910