Run: 2026-07-01-01KWE9F9811YSAQE9JAHH6RC95

Run Details

Duration:
5.6s
Cost:
$0.002620
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
83.41% 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
Rain fell hard on Blackwood Manor. Thunder cracked above the hills. Inside, candles flickered against darkness. The old clock struck midnight slowly. Sarah found the body upstairs. Blood pooled beneath the desk. Her scream echoed through empty halls. Nobody else seemed to be home. The windows were locked from inside. She reached for her cell phone. No signal existed in this storm. Footsteps creaked on the staircase below. Someone else was in the house. The lights flickered, then went dark. Sarah pressed herself against the wall. A shadow passed beneath the door. She held her breath in silence. This was no ordinary house call. Detective Marsh would arrive tomorrow morning. Tonight, she was completely alone.
created_at"2026-07-01T07:32:08.077Z" 7/1/2026, 7:32:08 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1681
moderation_latency(null)
generation_time5550
tokens_prompt46
tokens_completion179
native_tokens_prompt60
native_tokens_completion250
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"
service_tier"default"
usage0.00262
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01G9Q7gw4kKJL57CjZmEJkxa"
is_byokfalse
latency1681
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-1782891128-hr2uojQEOzDaruVRJF61"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891128-zjRA7slPZv9OWHG8Fetd"
upstream_id"msg_01G9Q7gw4kKJL57CjZmEJkxa"
total_cost0.00262
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
83.41% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
06
15
25
36
45
55
66
76
86
96
106
116
126
136
146
156
166
176
186
195