Run: 2026-04-24-01KQ0G4CJD0VWFDFQVMM75WNSF

Run Details

Duration:
8.8s
Cost:
$0.032200
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
The rain had been falling on Ashwood since midnight Tuesday. Detective Margaret Hollis parked her car beside the iron gate. Yellow tape fluttered like ribbons tied around a dying tree. Inside the manor, a single lamp burned in the study. Lord Ambrose Whitfield lay slumped across his mahogany writing desk. A silver letter opener protruded from between his stiff shoulders. Margaret knelt, studying the victim without touching anything at all. Six crystal glasses stood arranged neatly upon the oak sideboard. Only five guests had been invited to dinner that evening. Someone uninvited had clearly joined them before the clock struck. Margaret stood slowly and reached for her worn leather notebook. The real investigation, she knew, would begin at first light.
created_at"2026-04-24T19:40:39.89Z" 4/24/2026, 7:40:39 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2257
moderation_latency(null)
generation_time8723
tokens_prompt46
tokens_completion314
native_tokens_prompt65
native_tokens_completion1275
native_tokens_completion_images(null)
native_tokens_reasoning123
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"
usage0.0322
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"9670d8b7-841e-456c-8027-22732d4c2c03"
is_byokfalse
latency679
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-1777059639-Zhn9AGHzxmkkT0NVezCh"
session_id(null)
api_type"completions"
id"gen-1777059639-MV4stgYrf2WDjGgdbnai"
upstream_id"9670d8b7-841e-456c-8027-22732d4c2c03"
total_cost0.0322
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
sentences12
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110