Run: 2026-07-01-01KWE94HX8RWAH9961D9MBWYGK

Run Details

Duration:
5.9s
Cost:
$0.002620
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
89.95% 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 Locked Study Rain hammered against the window. Detective Marsh checked his watch. The house stood dark and silent. Someone had called about a scream. He climbed the creaking front steps. The door hung open, unlocked. Inside, the air felt wrong. A grandfather clock ticked loudly. Blood pooled beneath the study door. Marsh reached for the handle. It wouldn't budge an inch. Locked from the inside, apparently. He called for backup immediately. Through the keyhole, he saw shadows. A man lay on carpet. His chest didn't move at all. The window was cracked slightly open. Marsh frowned at the strange scene. Nothing here made any sense. Someone wanted this death staged. But staged deaths always slip up.
created_at"2026-07-01T07:26:16.501Z" 7/1/2026, 7:26:16 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1897
moderation_latency(null)
generation_time5891
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_01TDaeNg2AwW4T6omkHyZjjJ"
is_byokfalse
latency1897
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-1782890776-oSgycx0SxkqCY9OSrEno"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782890776-6SBusgNx3v8F9LcRAc1C"
upstream_id"msg_01TDaeNg2AwW4T6omkHyZjjJ"
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
89.95% Matches word count n/a
neededCleanfalse
sentences22
wordCounts
04
15
25
36
46
56
65
75
85
96
105
115
125
135
146
155
166
176
186
195
205
216