Run: 2026-07-25-01KYCR886S3HABYY3ABT07CF1G

Run Details

Duration:
13.8s
Cost:
$0.026025
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain had not stopped. Detective Mara Vance hated Tuesdays. This Tuesday would prove worse. The body lay face down. Blood pooled beneath the piano. Someone had closed the lid. Mara noted that small detail. Killers rarely tidied up afterward. The dead man wore gloves. White silk, one badly torn. Rain drummed against tall windows. Uniformed officers murmured near doorways. Nobody had touched the wine. Two glasses stood on velvet. Only one held any lipstick. Mara crouched beside the corpse. His watch had stopped completely. Eleven seventeen, the previous evening. The housekeeper claimed she slept. Everyone in this house lied. Mara stood and turned slowly. The piano bench was warm.
created_at"2026-07-25T13:43:21.056Z" 7/25/2026, 1:43:21 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3975
moderation_latency(null)
generation_time13672
tokens_prompt46
tokens_completion301
native_tokens_prompt60
native_tokens_completion1029
native_tokens_completion_images(null)
native_tokens_reasoning128
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"
usage0.026025
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsfTAFeiwU2HvacymLv"
is_byokfalse
latency1745
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-1784987001-PZNBqPz8NYQGYKOSKorM"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987001-lk5YznUVxRU3uH6RixiZ"
upstream_id"msg_011CdNsfTAFeiwU2HvacymLv"
total_cost0.026025
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
sentences22
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215