Run: 2026-07-01-01KWE91M3ZVWXW8VW1ABKMWWZZ

Run Details

Duration:
6.0s
Cost:
$0.002240
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
68.06% 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 Opening Scene Rain pounded the old mansion's windows on that dark night. Detective Sarah Mills stepped carefully across the marble floor. The body lay motionless beside the antique grandfather clock. Blood pooled slowly beneath the victim's outstretched right hand. Nobody in the house claimed to have heard anything strange. Six guests waited nervously inside the grand dining room. Each one avoided making direct eye contact with her. The butler nervously twisted a handkerchief between his fingers. Outside, thunder crashed like some cosmic accusation of guilt. Sarah knew that someone here was lying tonight.
created_at"2026-07-01T07:24:40.457Z" 7/1/2026, 7:24:40 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2103
moderation_latency(null)
generation_time5882
tokens_prompt46
tokens_completion157
native_tokens_prompt60
native_tokens_completion212
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"
usage0.00224
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01Grx9oNRSVTTB8FtwPcinq5"
is_byokfalse
latency2103
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-1782890680-rBgTun59CJ9LGDn5fRZX"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782890680-h79X9L8g8uPdHNYv6rgJ"
upstream_id"msg_01Grx9oNRSVTTB8FtwPcinq5"
total_cost0.00224
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
68.06% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
04
110
29
39
49
510
69
79
89
99
108