Run: 2026-04-24-01KPZV7G1XC30HBB9ENMHMK57W

Run Details

Duration:
4.9s
Cost:
$0.008150
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 hammered the windows of the old Ashford Manor relentlessly. Detective Margaret Hollis stepped carefully across the marble entrance hall. The body lay sprawled beneath the grand crystal chandelier above. Lord Edgar Ashford's eyes stared blankly at the painted ceiling. A silver letter opener protruded from his starched white shirt. Blood pooled slowly across the checkered floor in dark rivulets. Three guests huddled together in the adjacent drawing room silently. The butler stood rigid by the door, his hands trembling. Margaret knelt beside the corpse and examined the fatal wound. Something small and golden glinted within the dead man's fist. She pried open his fingers with careful, practiced forensic precision. A locket emerged, engraved with initials she immediately recognized clearly. Her breath caught sharply as old memories came flooding back. This case would prove far more personal than anyone suspected.
created_at"2026-04-24T13:35:21.674Z" 4/24/2026, 1:35:21 PM
model"anthropic/claude-4.7-opus-20260416"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency887
moderation_latency(null)
generation_time4830
tokens_prompt46
tokens_completion232
native_tokens_prompt65
native_tokens_completion313
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"
usage0.00815
router(null)
provider_responses
0
endpoint_id"0fa65117-00d9-4835-808d-9b68041d9ce4"
id"0a216c78-aacc-4b31-af75-f555e34cf1f7"
is_byokfalse
latency887
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-1777037721-VnljnXw5J5TMNjDuikSP"
session_id(null)
api_type"completions"
id"gen-1777037721-IILipZ9cbJAOqvc9GNmL"
upstream_id"0a216c78-aacc-4b31-af75-f555e34cf1f7"
total_cost0.00815
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
sentences14
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310