Run: 2026-07-25-01KYCRPG5BF80R5Z6DFBS0P7KG

Run Details

Duration:
20.2s
Cost:
$0.045925
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 stopped, but the gutters still kept talking. Detective Aisling Moore crossed the threshold at half past four. The house smelled of lilies, lemon polish, and something else. Beneath the chandelier lay a man in a grey suit. His left hand still held a glass of untouched champagne. The wound was small, precise, and hidden beneath his collar. Nobody had thought to close his eyes, she noted grimly. Twelve guests waited in the library, still wearing their masks. Somebody among them had lied already, and would lie again. Aisling removed her gloves and asked who found the body. Eleven hands stayed down; the twelfth rose, trembling, very slowly. The girl wore red silk and no mask at all. Outside, thunder answered, and the lights failed for three seconds. When light returned, the champagne glass was no longer there.
created_at"2026-07-25T13:51:07.955Z" 7/25/2026, 1:51:07 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4927
moderation_latency(null)
generation_time20062
tokens_prompt46
tokens_completion388
native_tokens_prompt60
native_tokens_completion1825
native_tokens_completion_images(null)
native_tokens_reasoning180
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"
usage0.045925
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNtFvoMfctDwHsSHqgMT"
is_byokfalse
latency2198
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-1784987467-I6x7sq62Eo24Z1G85GiJ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987467-egu5mnM2DlJUUSTFpRHW"
upstream_id"msg_011CdNtFvoMfctDwHsSHqgMT"
total_cost0.045925
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
sentences14
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310