Run: 2026-07-01-01KWE9D22PVHP15DEMBTGF6GAJ

Run Details

Duration:
14.7s
Cost:
$0.015940
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
Rain fell hard against the old mansion's tall glass windows. Detective Morgan stood silently beside the body on the floor. Blood pooled slowly across the polished wooden floor beneath him. No one had heard a single scream that dark night. The victim's eyes stared blankly at the cracked white ceiling. Morgan knelt down slowly, examining the fatal wound with precision. A faint smell of gunpowder still lingered in the air. Someone inside this old house had committed a terrible crime. Morgan knew the killer was still somewhere very close, watching. Tonight, the investigation would begin, and no one was safe.
created_at"2026-07-01T07:30:55.389Z" 7/1/2026, 7:30:55 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3692
moderation_latency(null)
generation_time14216
tokens_prompt46
tokens_completion252
native_tokens_prompt60
native_tokens_completion1582
native_tokens_completion_images(null)
native_tokens_reasoning99
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"
usage0.01594
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_018Jrj5Rz5msEQunkJ7yhLBX"
is_byokfalse
latency1525
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-1782891055-nGSIzI5bcdtVCybcH1w1"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891055-w7TRdQYWJEYU67Tz1Fjk"
upstream_id"msg_018Jrj5Rz5msEQunkJ7yhLBX"
total_cost0.01594
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
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910