Run: 2026-07-25-01KYCQPRDTYDD84MAM2QHM9E8F

Run Details

Duration:
18.4s
Cost:
$0.038725
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 old lighthouse keeper found her body at low tide. She lay face down among the mussels and broken glass. Her red coat had darkened to the color of rust. Gulls circled overhead, patient and screaming their small hungry complaints. Detective Inspector Maren Volk arrived twenty minutes after the call. She had not slept, and the coffee had gone cold. The village behind her held four hundred and nine people. One of them had done this, she thought, quite calmly. The keeper stood apart, hands shoved deep in his pockets. He said he had touched nothing, but that was untrue. Wet sand keeps its secrets badly; his footprints ringed her. Maren knelt beside the dead woman and studied her face. She knew this face; everyone in Harrowfleet knew this face. Elin Marsh had promised to ruin them all by Christmas. Someone, it seemed, had decided not to wait that long.
created_at"2026-07-25T13:33:47.984Z" 7/25/2026, 1:33:47 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4267
moderation_latency204
generation_time17826
tokens_prompt46
tokens_completion403
native_tokens_prompt60
native_tokens_completion1537
native_tokens_completion_images(null)
native_tokens_reasoning185
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"
usage0.038725
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNrwDkgXEsqwHXUXRT9n"
is_byokfalse
latency1318
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784986428-aEdGQLamdzB9FTTblKCd"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986428-4Im8lBamVh1jTV9dwj9F"
upstream_id"msg_011CdNrwDkgXEsqwHXUXRT9n"
total_cost0.038725
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
sentences15
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410