Run: 2026-07-01-01KWEAG7P9NMQA3J1FWWTHAF77

Run Details

Duration:
14.7s
Cost:
$0.017600
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 fell hard against the old manor's cracked, dusty windows. Detective Sarah Wren stepped carefully over the old threshold inside. Candles flickered weakly, casting long shadows across the silent hallway. A body lay motionless beside the grand old marble staircase. Blood pooled slowly beneath the victim's cold, outstretched pale hand. Wren knelt down slowly, examining the wound with practiced precision. Something metallic glinted faintly beneath the fallen, overturned wooden chair. She reached for it, hands trembling despite years of training. Outside, thunder cracked violently, rattling the old mansion's windowpanes hard. Wren whispered softly, "This wasn't a simple robbery gone wrong."
created_at"2026-07-01T07:50:07.826Z" 7/1/2026, 7:50:07 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3879
moderation_latency(null)
generation_time14679
tokens_prompt46
tokens_completion329
native_tokens_prompt60
native_tokens_completion1748
native_tokens_completion_images(null)
native_tokens_reasoning138
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"
usage0.0176
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01EhDuPaGz8Qqfj4vZsnvZLf"
is_byokfalse
latency1869
model_permaslug"anthropic/claude-sonnet-5-20260630"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.17.0; linux; x64))"
http_referer(null)
request_id"req-1782892207-N4EKpAmgNR2XE6q0IAdl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782892207-5pazphxOye3w68PEjrpB"
upstream_id"msg_01EhDuPaGz8Qqfj4vZsnvZLf"
total_cost0.0176
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910